diff --git a/front/components/arrows/BendableArrow.tsx b/front/components/arrows/BendableArrow.tsx
index b8f0f19..e2219bb 100644
--- a/front/components/arrows/BendableArrow.tsx
+++ b/front/components/arrows/BendableArrow.tsx
@@ -22,7 +22,7 @@ import {
     ratioWithinBase,
     relativeTo,
     norm,
-} from "./Pos"
+} from "../../geo/Pos"
 
 import "../../style/bendable_arrows.css"
 import Draggable from "react-draggable"
diff --git a/front/components/editor/BallPiece.tsx b/front/components/editor/BallPiece.tsx
index 2741249..d72ad75 100644
--- a/front/components/editor/BallPiece.tsx
+++ b/front/components/editor/BallPiece.tsx
@@ -1,7 +1,8 @@
 import "../../style/ball.css"
 
 import BallSvg from "../../assets/icon/ball.svg?react"
+import {BALL_ID} from "../../model/tactic/Ball";
 
 export function BallPiece() {
-    return <BallSvg className={"ball"} />
+    return <BallSvg id={BALL_ID} className={"ball"}/>
 }
diff --git a/front/components/editor/BasketCourt.tsx b/front/components/editor/BasketCourt.tsx
index 525e232..7aba76c 100644
--- a/front/components/editor/BasketCourt.tsx
+++ b/front/components/editor/BasketCourt.tsx
@@ -12,16 +12,17 @@ import CourtPlayer from "./CourtPlayer"
 import { Player } from "../../model/tactic/Player"
 import { Action, ActionKind } from "../../model/tactic/Action"
 import ArrowAction from "../actions/ArrowAction"
-import { middlePos, ratioWithinBase } from "../arrows/Pos"
+import { middlePos, ratioWithinBase } from "../../geo/Pos"
 import BallAction from "../actions/BallAction"
-import { CourtObject } from "../../model/tactic/Ball"
-import { contains } from "../arrows/Box"
+import {BALL_ID} from "../../model/tactic/Ball"
+import { contains, overlaps } from "../../geo/Box"
+
 import { CourtAction } from "../../views/editor/CourtAction"
+import { TacticComponent } from "../../model/tactic/Tactic"
 
 export interface BasketCourtProps {
-    players: Player[]
+    components: TacticComponent[]
     actions: Action[]
-    objects: CourtObject[]
 
     renderAction: (a: Action, key: number) => ReactElement
     setActions: (f: (a: Action[]) => Action[]) => void
@@ -37,9 +38,8 @@ export interface BasketCourtProps {
 }
 
 export function BasketCourt({
-    players,
+    components,
     actions,
-    objects,
     renderAction,
     setActions,
     onPlayerRemove,
@@ -59,33 +59,31 @@ export function BasketCourt({
             courtBounds,
         )
 
-        for (const player of players) {
-            if (player.id == origin.id) {
+        for (const component of components) {
+            if (component.id == origin.id) {
                 continue
             }
 
             const playerBounds = document
-                .getElementById(player.id)!
+                .getElementById(component.id)!
                 .getBoundingClientRect()
 
-            if (
-                !(
-                    playerBounds.top > arrowHead.bottom ||
-                    playerBounds.right < arrowHead.left ||
-                    playerBounds.bottom < arrowHead.top ||
-                    playerBounds.left > arrowHead.right
-                )
-            ) {
+            if (overlaps(playerBounds, arrowHead)) {
                 const targetPos = document
-                    .getElementById(player.id)!
+                    .getElementById(component.id)!
                     .getBoundingClientRect()
 
                 const end = ratioWithinBase(middlePos(targetPos), courtBounds)
 
                 const action: Action = {
-                    fromPlayerId: originRef.id,
-                    toPlayerId: player.id,
-                    type: origin.hasBall ? ActionKind.SHOOT : ActionKind.SCREEN,
+                    fromId: originRef.id,
+                    toId: component.id,
+                    type:
+                        component.type == "player"
+                            ? origin.hasBall
+                                ? ActionKind.SHOOT
+                                : ActionKind.SCREEN
+                            : ActionKind.MOVE,
                     moveFrom: start,
                     segments: [{ next: end }],
                 }
@@ -95,7 +93,7 @@ export function BasketCourt({
         }
 
         const action: Action = {
-            fromPlayerId: originRef.id,
+            fromId: originRef.id,
             type: origin.hasBall ? ActionKind.DRIBBLE : ActionKind.MOVE,
             moveFrom: ratioWithinBase(
                 middlePos(originRef.getBoundingClientRect()),
@@ -110,20 +108,20 @@ export function BasketCourt({
 
     const [previewAction, setPreviewAction] = useState<Action | null>(null)
 
-    const updateActionsRelatedTo = useCallback((player: Player) => {
+    const updateActionsRelatedTo = useCallback((comp: TacticComponent) => {
         const newPos = ratioWithinBase(
             middlePos(
-                document.getElementById(player.id)!.getBoundingClientRect(),
+                document.getElementById(comp.id)!.getBoundingClientRect(),
             ),
             courtRef.current!.getBoundingClientRect(),
         )
         setActions((actions) =>
             actions.map((a) => {
-                if (a.fromPlayerId == player.id) {
+                if (a.fromId == comp.id) {
                     return { ...a, moveFrom: newPos }
                 }
 
-                if (a.toPlayerId == player.id) {
+                if (a.toId == comp.id) {
                     const segments = a.segments.toSpliced(
                         a.segments.length - 1,
                         1,
@@ -151,113 +149,125 @@ export function BasketCourt({
             style={{ position: "relative" }}>
             {courtImage}
 
-            {players.map((player) => (
-                <CourtPlayer
-                    key={player.id}
-                    player={player}
-                    onDrag={() => updateActionsRelatedTo(player)}
-                    onChange={onPlayerChange}
-                    onRemove={() => onPlayerRemove(player)}
-                    courtRef={courtRef}
-                    availableActions={(pieceRef) => [
-                        <ArrowAction
-                            key={1}
-                            onHeadMoved={(headPos) => {
-                                const baseBounds =
-                                    courtRef.current!.getBoundingClientRect()
-
-                                const arrowHeadPos = middlePos(headPos)
-
-                                const target = players.find(
-                                    (p) =>
-                                        p != player &&
-                                        contains(
-                                            document
-                                                .getElementById(p.id)!
-                                                .getBoundingClientRect(),
-                                            arrowHeadPos,
-                                        ),
-                                )
-
-                                setPreviewAction((action) => ({
-                                    ...action!,
-                                    segments: [
-                                        {
-                                            next: ratioWithinBase(
-                                                arrowHeadPos,
-                                                baseBounds,
-                                            ),
-                                        },
-                                    ],
-                                    type: player.hasBall
-                                        ? target
-                                            ? ActionKind.SHOOT
-                                            : ActionKind.DRIBBLE
-                                        : target
-                                          ? ActionKind.SCREEN
-                                          : ActionKind.MOVE,
-                                }))
-                            }}
-                            onHeadPicked={(headPos) => {
-                                ;(document.activeElement as HTMLElement).blur()
-                                const baseBounds =
-                                    courtRef.current!.getBoundingClientRect()
-
-                                setPreviewAction({
-                                    type: player.hasBall
-                                        ? ActionKind.DRIBBLE
-                                        : ActionKind.MOVE,
-                                    fromPlayerId: player.id,
-                                    toPlayerId: undefined,
-                                    moveFrom: ratioWithinBase(
-                                        middlePos(
-                                            pieceRef.getBoundingClientRect(),
-                                        ),
-                                        baseBounds,
-                                    ),
-                                    segments: [
-                                        {
-                                            next: ratioWithinBase(
-                                                middlePos(headPos),
-                                                baseBounds,
-                                            ),
-                                        },
-                                    ],
-                                })
-                            }}
-                            onHeadDropped={(headRect) => {
-                                placeArrow(player, headRect)
-                                setPreviewAction(null)
-                            }}
-                        />,
-                        player.hasBall && (
-                            <BallAction
-                                key={2}
-                                onDrop={(ref) =>
-                                    onBallMoved(ref.getBoundingClientRect())
-                                }
-                            />
-                        ),
-                    ]}
-                />
-            ))}
+            {components.map((component) => {
+                if (component.type == "player") {
+                    const player = component
+                    return (
+                        <CourtPlayer
+                            key={player.id}
+                            player={player}
+                            onDrag={() => updateActionsRelatedTo(player)}
+                            onChange={onPlayerChange}
+                            onRemove={() => onPlayerRemove(player)}
+                            courtRef={courtRef}
+                            availableActions={(pieceRef) => [
+                                <ArrowAction
+                                    key={1}
+                                    onHeadMoved={(headPos) => {
+                                        const baseBounds =
+                                            courtRef.current!.getBoundingClientRect()
 
-            {internActions.map((action, idx) => renderAction(action, idx))}
+                                        const arrowHeadPos = middlePos(headPos)
+
+                                        const target = components.find(
+                                            (c) =>
+                                                c.id != player.id &&
+                                                contains(
+                                                    document
+                                                        .getElementById(c.id)!
+                                                        .getBoundingClientRect(),
+                                                    arrowHeadPos,
+                                                ),
+                                        )
 
-            {objects.map((object) => {
-                if (object.type == "ball") {
+                                        const type =
+                                            target?.type == "player"
+                                                ? player.hasBall
+                                                    ? target
+                                                        ? ActionKind.SHOOT
+                                                        : ActionKind.DRIBBLE
+                                                    : target
+                                                      ? ActionKind.SCREEN
+                                                      : ActionKind.MOVE
+                                                : ActionKind.MOVE
+
+                                        setPreviewAction((action) => ({
+                                            ...action!,
+                                            segments: [
+                                                {
+                                                    next: ratioWithinBase(
+                                                        arrowHeadPos,
+                                                        baseBounds,
+                                                    ),
+                                                },
+                                            ],
+                                            type,
+                                        }))
+                                    }}
+                                    onHeadPicked={(headPos) => {
+                                        ;(
+                                            document.activeElement as HTMLElement
+                                        ).blur()
+                                        const baseBounds =
+                                            courtRef.current!.getBoundingClientRect()
+
+                                        setPreviewAction({
+                                            type: player.hasBall
+                                                ? ActionKind.DRIBBLE
+                                                : ActionKind.MOVE,
+                                            fromId: player.id,
+                                            toId: undefined,
+                                            moveFrom: ratioWithinBase(
+                                                middlePos(
+                                                    pieceRef.getBoundingClientRect(),
+                                                ),
+                                                baseBounds,
+                                            ),
+                                            segments: [
+                                                {
+                                                    next: ratioWithinBase(
+                                                        middlePos(headPos),
+                                                        baseBounds,
+                                                    ),
+                                                },
+                                            ],
+                                        })
+                                    }}
+                                    onHeadDropped={(headRect) => {
+                                        placeArrow(player, headRect)
+                                        setPreviewAction(null)
+                                    }}
+                                />,
+                                player.hasBall && (
+                                    <BallAction
+                                        key={2}
+                                        onDrop={(ref) =>
+                                            onBallMoved(
+                                                ref.getBoundingClientRect(),
+                                            )
+                                        }
+                                    />
+                                ),
+                            ]}
+                        />
+                    )
+                }
+                if (component.type == BALL_ID) {
                     return (
                         <CourtBall
-                            onMoved={onBallMoved}
-                            ball={object}
+                            onPosValidated={onBallMoved}
+                            onMoves={() => updateActionsRelatedTo(component)}
+                            ball={component}
                             onRemove={onBallRemove}
                             key="ball"
                         />
                     )
                 }
-                throw new Error("unknown court object" + object.type)
+                throw new Error("unknown tactic component " + component)
             })}
 
+            {internActions.map((action, idx) => renderAction(action, idx))}
+
             {previewAction && (
                 <CourtAction
                     courtRef={courtRef}
diff --git a/front/components/editor/CourtBall.tsx b/front/components/editor/CourtBall.tsx
index b1fa1d0..1e208be 100644
--- a/front/components/editor/CourtBall.tsx
+++ b/front/components/editor/CourtBall.tsx
@@ -4,12 +4,18 @@ import { BallPiece } from "./BallPiece"
 import { Ball } from "../../model/tactic/Ball"
 
 export interface CourtBallProps {
-    onMoved: (rect: DOMRect) => void
+    onPosValidated: (rect: DOMRect) => void
+    onMoves: () => void
     onRemove: () => void
     ball: Ball
 }
 
-export function CourtBall({ onMoved, ball, onRemove }: CourtBallProps) {
+export function CourtBall({
+    onPosValidated,
+    ball,
+    onRemove,
+    onMoves,
+}: CourtBallProps) {
     const pieceRef = useRef<HTMLDivElement>(null)
 
     const x = ball.rightRatio
@@ -17,7 +23,10 @@ export function CourtBall({ onMoved, ball, onRemove }: CourtBallProps) {
 
     return (
         <Draggable
-            onStop={() => onMoved(pieceRef.current!.getBoundingClientRect())}
+            onStop={() =>
+                onPosValidated(pieceRef.current!.getBoundingClientRect())
+            }
+            onDrag={onMoves}
             nodeRef={pieceRef}>
             <div
                 className={"ball-div"}
diff --git a/front/components/editor/CourtPlayer.tsx b/front/components/editor/CourtPlayer.tsx
index c0c94d5..4e8ccfd 100644
--- a/front/components/editor/CourtPlayer.tsx
+++ b/front/components/editor/CourtPlayer.tsx
@@ -3,7 +3,7 @@ import "../../style/player.css"
 import Draggable from "react-draggable"
 import { PlayerPiece } from "./PlayerPiece"
 import { Player } from "../../model/tactic/Player"
-import { NULL_POS, ratioWithinBase } from "../arrows/Pos"
+import { NULL_POS, ratioWithinBase } from "../../geo/Pos"
 
 export interface PlayerProps {
     player: Player
@@ -44,13 +44,14 @@ export default function CourtPlayer({
                 const { x, y } = ratioWithinBase(pieceBounds, parentBounds)
 
                 onChange({
+                    type: "player",
                     id: player.id,
                     rightRatio: x,
                     bottomRatio: y,
                     team: player.team,
                     role: player.role,
                     hasBall: player.hasBall,
-                })
+                } as Player)
             }}>
             <div
                 id={player.id}
diff --git a/front/components/arrows/Box.ts b/front/geo/Box.ts
similarity index 81%
rename from front/components/arrows/Box.ts
rename to front/geo/Box.ts
index 36a674f..81c18d2 100644
--- a/front/components/arrows/Box.ts
+++ b/front/geo/Box.ts
@@ -28,6 +28,14 @@ export function surrounds(pos: Pos, width: number, height: number): Box {
     }
 }
 
+export function overlaps(a: Box, b: Box): boolean {
+    if (a.x + a.width < b.x || b.x + b.width < a.x) {
+        return false
+    }
+
+    return !(a.y + a.height < b.y || b.y + b.height < a.y)
+}
+
 export function contains(box: Box, pos: Pos): boolean {
     return (
         pos.x >= box.x &&
diff --git a/front/components/arrows/Pos.ts b/front/geo/Pos.ts
similarity index 100%
rename from front/components/arrows/Pos.ts
rename to front/geo/Pos.ts
diff --git a/front/model/tactic/Action.ts b/front/model/tactic/Action.ts
index 0b5aee5..d238398 100644
--- a/front/model/tactic/Action.ts
+++ b/front/model/tactic/Action.ts
@@ -1,6 +1,7 @@
-import { Pos } from "../../components/arrows/Pos"
+
+import { Pos } from "../../geo/Pos"
 import { Segment } from "../../components/arrows/BendableArrow"
-import { PlayerId } from "./Player"
+import { ComponentId } from "./Tactic"
 
 export enum ActionKind {
     SCREEN = "SCREEN",
@@ -12,8 +13,8 @@ export enum ActionKind {
 export type Action = { type: ActionKind } & MovementAction
 
 export interface MovementAction {
-    fromPlayerId: PlayerId
-    toPlayerId?: PlayerId
+    fromId: ComponentId
+    toId?: ComponentId
     moveFrom: Pos
     segments: Segment[]
 }
diff --git a/front/model/tactic/Ball.ts b/front/model/tactic/Ball.ts
index 28e4830..96cde26 100644
--- a/front/model/tactic/Ball.ts
+++ b/front/model/tactic/Ball.ts
@@ -1,17 +1,9 @@
-export type CourtObject = { type: "ball" } & Ball
+import { Component } from "./Tactic"
 
-export interface Ball {
-    /**
-     * The ball is a "ball" court object
-     */
-    readonly type: "ball"
+export const BALL_ID = "ball"
+export const BALL_TYPE = "ball"
 
-    /**
-     * Percentage of the player's position to the bottom (0 means top, 1 means bottom, 0.5 means middle)
-     */
-    readonly bottomRatio: number
-    /**
-     * Percentage of the player's position to the right (0 means left, 1 means right, 0.5 means middle)
-     */
-    readonly rightRatio: number
-}
+//place here all different kinds of objects
+export type CourtObject = Ball
+
+export type Ball = Component<typeof BALL_TYPE>
diff --git a/front/model/tactic/Player.ts b/front/model/tactic/Player.ts
index f94d6bf..e558496 100644
--- a/front/model/tactic/Player.ts
+++ b/front/model/tactic/Player.ts
@@ -1,3 +1,5 @@
+import {Component} from "./Tactic";
+
 export type PlayerId = string
 
 export enum PlayerTeam {
@@ -7,7 +9,9 @@ export enum PlayerTeam {
 
 export interface Player {
     readonly id: PlayerId
+}
 
+export interface Player extends Component<"player"> {
     /**
      * the player's team
      * */
@@ -18,18 +22,9 @@ export interface Player {
      * */
     readonly role: string
 
-    /**
-     * Percentage of the player's position to the bottom (0 means top, 1 means bottom, 0.5 means middle)
-     */
-    readonly bottomRatio: number
-
-    /**
-     * Percentage of the player's position to the right (0 means left, 1 means right, 0.5 means middle)
-     */
-    readonly rightRatio: number
-
     /**
      * True if the player has a basketball
      */
     readonly hasBall: boolean
 }
+
diff --git a/front/model/tactic/Tactic.ts b/front/model/tactic/Tactic.ts
index 2eab85b..6580dbb 100644
--- a/front/model/tactic/Tactic.ts
+++ b/front/model/tactic/Tactic.ts
@@ -1,6 +1,6 @@
-import { Player } from "./Player"
-import { CourtObject } from "./Ball"
-import { Action } from "./Action"
+import {Player} from "./Player"
+import {Action} from "./Action"
+import {CourtObject} from "./Ball"
 
 export interface Tactic {
     id: number
@@ -9,7 +9,29 @@ export interface Tactic {
 }
 
 export interface TacticContent {
-    players: Player[]
-    objects: CourtObject[]
+    components: TacticComponent[]
     actions: Action[]
 }
+
+export type TacticComponent = Player | CourtObject
+export type ComponentId = string
+
+export interface Component<T> {
+    /**
+     * The component's type
+     */
+    readonly type: T
+    /**
+     * The component's identifier
+     */
+    readonly id: ComponentId
+    /**
+     * Percentage of the player's position to the bottom (0 means top, 1 means bottom, 0.5 means middle)
+     */
+    readonly bottomRatio: number
+
+    /**
+     * Percentage of the player's position to the right (0 means left, 1 means right, 0.5 means middle)
+     */
+    readonly rightRatio: number
+}
diff --git a/front/views/Editor.tsx b/front/views/Editor.tsx
index cbb2da5..387ad74 100644
--- a/front/views/Editor.tsx
+++ b/front/views/Editor.tsx
@@ -1,38 +1,27 @@
-import {
-    CSSProperties,
-    Dispatch,
-    SetStateAction,
-    useCallback,
-    useMemo,
-    useRef,
-    useState,
-} from "react"
+import {CSSProperties, Dispatch, SetStateAction, useCallback, useMemo, useRef, useState,} from "react"
 import "../style/editor.css"
 import TitleInput from "../components/TitleInput"
 import PlainCourt from "../assets/court/full_court.svg?react"
 import HalfCourt from "../assets/court/half_court.svg?react"
 
-import { BallPiece } from "../components/editor/BallPiece"
+import {BallPiece} from "../components/editor/BallPiece"
 
-import { Rack } from "../components/Rack"
-import { PlayerPiece } from "../components/editor/PlayerPiece"
-import { Player } from "../model/tactic/Player"
+import {Rack} from "../components/Rack"
+import {PlayerPiece} from "../components/editor/PlayerPiece"
+import {Player, PlayerTeam} from "../model/tactic/Player"
 
-import { Tactic, TacticContent } from "../model/tactic/Tactic"
-import { fetchAPI } from "../Fetcher"
-import { PlayerTeam } from "../model/tactic/Player"
+import {Tactic, TacticComponent, TacticContent} from "../model/tactic/Tactic"
+import {fetchAPI} from "../Fetcher"
 
-import SavingState, {
-    SaveState,
-    SaveStates,
-} from "../components/editor/SavingState"
+import SavingState, {SaveState, SaveStates,} from "../components/editor/SavingState"
 
-import { CourtObject } from "../model/tactic/Ball"
-import { CourtAction } from "./editor/CourtAction"
-import { BasketCourt } from "../components/editor/BasketCourt"
-import { ratioWithinBase } from "../components/arrows/Pos"
-import { Action, ActionKind } from "../model/tactic/Action"
-import { BASE } from "../Constants"
+import {BALL_ID, BALL_TYPE, CourtObject, Ball} from "../model/tactic/Ball"
+import {CourtAction} from "./editor/CourtAction"
+import {BasketCourt} from "../components/editor/BasketCourt"
+import {Action, ActionKind} from "../model/tactic/Action"
+import {BASE} from "../Constants"
+import {overlaps} from "../geo/Box"
+import {ratioWithinBase} from "../geo/Pos"
 
 const ERROR_STYLE: CSSProperties = {
     borderColor: "red",
@@ -135,10 +124,10 @@ function EditorView({
     )
 
     const [allies, setAllies] = useState(
-        getRackPlayers(PlayerTeam.Allies, content.players),
+        getRackPlayers(PlayerTeam.Allies, content.components),
     )
     const [opponents, setOpponents] = useState(
-        getRackPlayers(PlayerTeam.Opponents, content.players),
+        getRackPlayers(PlayerTeam.Opponents, content.components),
     )
 
     const [objects, setObjects] = useState<RackedCourtObject[]>(
@@ -151,15 +140,10 @@ function EditorView({
         const courtBounds = courtDivContentRef.current!.getBoundingClientRect()
 
         // check if refBounds overlaps courtBounds
-        return !(
-            bounds.top > courtBounds.bottom ||
-            bounds.right < courtBounds.left ||
-            bounds.bottom < courtBounds.top ||
-            bounds.left > courtBounds.right
-        )
+        return overlaps(courtBounds, bounds)
     }
 
-    const onPieceDetach = (ref: HTMLDivElement, element: RackedPlayer) => {
+    const onRackPieceDetach = (ref: HTMLDivElement, element: RackedPlayer) => {
         const refBounds = ref.getBoundingClientRect()
         const courtBounds = courtDivContentRef.current!.getBoundingClientRect()
 
@@ -168,23 +152,24 @@ function EditorView({
         setContent((content) => {
             return {
                 ...content,
-                players: [
-                    ...content.players,
+                components: [
+                    ...content.components,
                     {
+                        type: "player",
                         id: "player-" + element.key + "-" + element.team,
                         team: element.team,
                         role: element.key,
                         rightRatio: x,
                         bottomRatio: y,
                         hasBall: false,
-                    },
+                    } as Player,
                 ],
                 actions: content.actions,
             }
         })
     }
 
-    const onObjectDetach = (
+    const onRackedObjectDetach = (
         ref: HTMLDivElement,
         rackedObject: RackedCourtObject,
     ) => {
@@ -196,27 +181,22 @@ function EditorView({
         let courtObject: CourtObject
 
         switch (rackedObject.key) {
-            case "ball":
-                const ballObj = content.objects.findIndex(
-                    (o) => o.type == "ball",
+            case BALL_TYPE:
+                const ballObj = content.components.findIndex(
+                    (o) => o.type == BALL_TYPE,
                 )
-                const playerCollidedIdx = getPlayerCollided(
+                const playerCollidedIdx = getComponentCollided(
                     refBounds,
-                    content.players,
+                    content.components.toSpliced(ballObj, 1),
                 )
                 if (playerCollidedIdx != -1) {
-                    onBallDropOnPlayer(playerCollidedIdx)
-                    setContent((content) => {
-                        return {
-                            ...content,
-                            objects: content.objects.toSpliced(ballObj, 1),
-                        }
-                    })
+                    onBallDropOnComponent(playerCollidedIdx)
                     return
                 }
 
                 courtObject = {
-                    type: "ball",
+                    type: BALL_TYPE,
+                    id: BALL_ID,
                     rightRatio: x,
                     bottomRatio: y,
                 }
@@ -229,38 +209,34 @@ function EditorView({
         setContent((content) => {
             return {
                 ...content,
-                objects: [...content.objects, courtObject],
+                components: [...content.components, courtObject],
             }
         })
     }
 
-    const getPlayerCollided = (
+    const getComponentCollided = (
         bounds: DOMRect,
-        players: Player[],
+        components: TacticComponent[],
     ): number | -1 => {
-        for (let i = 0; i < players.length; i++) {
-            const player = players[i]
+        for (let i = 0; i < components.length; i++) {
+            const component = components[i]
             const playerBounds = document
-                .getElementById(player.id)!
+                .getElementById(component.id)!
                 .getBoundingClientRect()
-            const doesOverlap = !(
-                bounds.top > playerBounds.bottom ||
-                bounds.right < playerBounds.left ||
-                bounds.bottom < playerBounds.top ||
-                bounds.left > playerBounds.right
-            )
-            if (doesOverlap) {
+            if (overlaps(playerBounds, bounds)) {
                 return i
             }
         }
         return -1
     }
 
-    function updateActions(actions: Action[], players: Player[]) {
+    function updateActions(actions: Action[], components: TacticComponent[]) {
         return actions.map((action) => {
-            const originHasBall = players.find(
-                (p) => p.id == action.fromPlayerId,
-            )!.hasBall
+            const originHasBall = (
+                components.find(
+                    (p) => p.type == "player" && p.id == action.fromId,
+                )! as Player
+            ).hasBall
 
             let type = action.type
 
@@ -280,80 +256,101 @@ function EditorView({
         })
     }
 
-    const onBallDropOnPlayer = (playerCollidedIdx: number) => {
+    const onBallDropOnComponent = (collidedComponentIdx: number) => {
         setContent((content) => {
-            const ballObj = content.objects.findIndex((o) => o.type == "ball")
-            let player = content.players.at(playerCollidedIdx) as Player
-            const players = content.players.toSpliced(playerCollidedIdx, 1, {
-                ...player,
-                hasBall: true,
-            })
+            const ballObj = content.components.findIndex(
+                (p) => p.type == BALL_TYPE,
+            )
+            let component = content.components[collidedComponentIdx]
+            if (component.type != "player") {
+                return content //do nothing if the ball isn't dropped on a player.
+            }
+            const components = content.components.toSpliced(
+                collidedComponentIdx,
+                1,
+                {
+                    ...component,
+                    hasBall: true,
+                },
+            )
+            // Maybe the ball is not present on the court as an object component
+            // if so, don't bother removing it from the court.
+            // This can occur if the user drags and drop the ball from a player that already has the ball
+            // to another component
+            if (ballObj != -1) {
+                components.splice(ballObj, 1)
+            }
             return {
                 ...content,
-                actions: updateActions(content.actions, players),
-                players,
-                objects: content.objects.toSpliced(ballObj, 1),
+                actions: updateActions(content.actions, components),
+                components,
             }
         })
     }
 
-    const onBallDrop = (refBounds: DOMRect) => {
+    const onBallMoved = (refBounds: DOMRect) => {
         if (!isBoundsOnCourt(refBounds)) {
             removeCourtBall()
             return
         }
-        const playerCollidedIdx = getPlayerCollided(refBounds, content.players)
+        const playerCollidedIdx = getComponentCollided(
+            refBounds,
+            content.components,
+        )
         if (playerCollidedIdx != -1) {
             setContent((content) => {
                 return {
                     ...content,
-                    players: content.players.map((player) => ({
-                        ...player,
-                        hasBall: false,
-                    })),
+                    components: content.components.map((c) =>
+                        c.type == "player"
+                            ? {
+                                  ...c,
+                                  hasBall: false,
+                              }
+                            : c,
+                    ),
                 }
             })
-            onBallDropOnPlayer(playerCollidedIdx)
+            onBallDropOnComponent(playerCollidedIdx)
             return
         }
 
-        if (content.objects.findIndex((o) => o.type == "ball") != -1) {
+        if (content.components.findIndex((o) => o.type == "ball") != -1) {
             return
         }
 
         const courtBounds = courtDivContentRef.current!.getBoundingClientRect()
         const { x, y } = ratioWithinBase(refBounds, courtBounds)
-        let courtObject: CourtObject
-
-        courtObject = {
-            type: "ball",
+        const courtObject = {
+            type: BALL_TYPE,
+            id: BALL_ID,
             rightRatio: x,
             bottomRatio: y,
-        }
+        } as Ball
+
+        let components = content.components.map((c) =>
+            c.type == "player"
+                ? {
+                      ...c,
+                      hasBall: false,
+                  }
+                : c,
+        )
+        components = [...components, courtObject]
 
-        const players = content.players.map((player) => ({
-            ...player,
-            hasBall: false,
+        setContent((content) => ({
+            ...content,
+            actions: updateActions(content.actions, components),
+            components,
         }))
-
-        setContent((content) => {
-            return {
-                ...content,
-                actions: updateActions(content.actions, players),
-                players,
-                objects: [...content.objects, courtObject],
-            }
-        })
     }
 
     const removePlayer = (player: Player) => {
         setContent((content) => ({
             ...content,
-            players: toSplicedPlayers(content.players, player, false),
-            objects: [...content.objects],
+            components: replaceOrInsert(content.components, player, false),
             actions: content.actions.filter(
-                (a) =>
-                    a.toPlayerId !== player.id && a.fromPlayerId !== player.id,
+                (a) => a.toId !== player.id && a.fromId !== player.id,
             ),
         }))
         let setter
@@ -379,14 +376,21 @@ function EditorView({
 
     const removeCourtBall = () => {
         setContent((content) => {
-            const ballObj = content.objects.findIndex((o) => o.type == "ball")
+            const ballObj = content.components.findIndex(
+                (o) => o.type == "ball",
+            )
+            const components = content.components.map((c) =>
+                c.type == "player"
+                    ? ({
+                          ...c,
+                          hasBall: false,
+                      } as Player)
+                    : c,
+            )
+            components.splice(ballObj, 1)
             return {
                 ...content,
-                players: content.players.map((player) => ({
-                    ...player,
-                    hasBall: false,
-                })),
-                objects: content.objects.toSpliced(ballObj, 1),
+                components,
             }
         })
         setObjects([{ key: "ball" }])
@@ -423,7 +427,7 @@ function EditorView({
                         canDetach={(div) =>
                             isBoundsOnCourt(div.getBoundingClientRect())
                         }
-                        onElementDetached={onPieceDetach}
+                        onElementDetached={onRackPieceDetach}
                         render={({ team, key }) => (
                             <PlayerPiece
                                 team={team}
@@ -441,7 +445,7 @@ function EditorView({
                         canDetach={(div) =>
                             isBoundsOnCourt(div.getBoundingClientRect())
                         }
-                        onElementDetached={onObjectDetach}
+                        onElementDetached={onRackedObjectDetach}
                         render={renderCourtObject}
                     />
 
@@ -452,7 +456,7 @@ function EditorView({
                         canDetach={(div) =>
                             isBoundsOnCourt(div.getBoundingClientRect())
                         }
-                        onElementDetached={onPieceDetach}
+                        onElementDetached={onRackPieceDetach}
                         render={({ team, key }) => (
                             <PlayerPiece
                                 team={team}
@@ -466,16 +470,14 @@ function EditorView({
                 <div id="court-div">
                     <div id="court-div-bounds">
                         <BasketCourt
-                            players={content.players}
-                            objects={content.objects}
+                            components={content.components}
                             actions={content.actions}
-                            onBallMoved={onBallDrop}
+                            onBallMoved={onBallMoved}
                             courtImage={<Court courtType={courtType} />}
                             courtRef={courtDivContentRef}
                             setActions={(actions) =>
                                 setContent((content) => ({
                                     ...content,
-                                    players: content.players,
                                     actions: actions(content.actions),
                                 }))
                             }
@@ -515,8 +517,8 @@ function EditorView({
                                 }
                                 setContent((content) => ({
                                     ...content,
-                                    players: toSplicedPlayers(
-                                        content.players,
+                                    components: replaceOrInsert(
+                                        content.components,
                                         player,
                                         true,
                                     ),
@@ -533,10 +535,11 @@ function EditorView({
 }
 
 function isBallOnCourt(content: TacticContent) {
-    if (content.players.findIndex((p) => p.hasBall) != -1) {
-        return true
-    }
-    return content.objects.findIndex((o) => o.type == "ball") != -1
+    return (
+        content.components.findIndex(
+            (c) => (c.type == "player" && c.hasBall) || c.type == BALL_TYPE,
+        ) != -1
+    )
 }
 
 function renderCourtObject(courtObject: RackedCourtObject) {
@@ -558,12 +561,18 @@ function Court({ courtType }: { courtType: string }) {
     )
 }
 
-function getRackPlayers(team: PlayerTeam, players: Player[]): RackedPlayer[] {
+
+function getRackPlayers(
+    team: PlayerTeam,
+    components: TacticComponent[],
+): RackedPlayer[] {
     return ["1", "2", "3", "4", "5"]
         .filter(
             (role) =>
-                players.findIndex((p) => p.team == team && p.role == role) ==
-                -1,
+                components.findIndex(
+                    (c) =>
+                        c.type == "player" && c.team == team && c.role == role,
+                ) == -1,
         )
         .map((key) => ({ team, key }))
 }
@@ -611,14 +620,11 @@ function useContentState<S>(
     return [content, setContentSynced, savingState]
 }
 
-function toSplicedPlayers(
-    players: Player[],
-    player: Player,
+function replaceOrInsert<A extends TacticComponent>(
+    array: A[],
+    it: A,
     replace: boolean,
-): Player[] {
-    const idx = players.findIndex(
-        (p) => p.team === player.team && p.role === player.role,
-    )
-
-    return players.toSpliced(idx, 1, ...(replace ? [player] : []))
+): A[] {
+    const idx = array.findIndex((i) => i.id == it.id)
+    return array.toSpliced(idx, 1, ...(replace ? [it] : []))
 }
diff --git a/front/views/editor/CourtAction.tsx b/front/views/editor/CourtAction.tsx
index de33224..cef1e86 100644
--- a/front/views/editor/CourtAction.tsx
+++ b/front/views/editor/CourtAction.tsx
@@ -46,7 +46,7 @@ export function CourtAction({
             }}
             wavy={action.type == ActionKind.DRIBBLE}
             //TODO place those magic values in constants
-            endRadius={action.toPlayerId ? 26 : 17}
+            endRadius={action.toId ? 26 : 17}
             startRadius={0}
             onDeleteRequested={onActionDeleted}
             style={{
diff --git a/front/views/template/Header.tsx b/front/views/template/Header.tsx
index 5c8cbcd..8555133 100644
--- a/front/views/template/Header.tsx
+++ b/front/views/template/Header.tsx
@@ -17,7 +17,7 @@ export function Header({ username }: { username: string }) {
                         location.pathname = BASE + "/"
                     }}>
                     <span id="IQ">IQ</span>
-                    <span id="Ball">Ball</span>
+                    <span id="Ball">CourtObjects</span>
                 </h1>
             </div>
             <div id="header-right">
diff --git a/sql/setup-tables.sql b/sql/setup-tables.sql
index 0d157d9..a8ce6bd 100644
--- a/sql/setup-tables.sql
+++ b/sql/setup-tables.sql
@@ -20,7 +20,7 @@ CREATE TABLE Tactic
     name          varchar                             NOT NULL,
     creation_date timestamp DEFAULT CURRENT_TIMESTAMP NOT NULL,
     owner         integer                             NOT NULL,
-    content       varchar   DEFAULT '{"players": [], "actions": [], "objects": []}' NOT NULL,
+    content       varchar   DEFAULT '{"components": [], "actions": []}' NOT NULL,
     court_type    varchar CHECK ( court_type IN ('HALF', 'PLAIN')) NOT NULL,
     FOREIGN KEY (owner) REFERENCES Account
 );
diff --git a/src/App/Controller/EditorController.php b/src/App/Controller/EditorController.php
index 4bdcfae..b6ebd6e 100644
--- a/src/App/Controller/EditorController.php
+++ b/src/App/Controller/EditorController.php
@@ -42,7 +42,7 @@ class EditorController {
         return ViewHttpResponse::react("views/Editor.tsx", [
             "id" => -1, //-1 id means that the editor will not support saves
             "name" => TacticModel::TACTIC_DEFAULT_NAME,
-            "content" => '{"players": [], "objects": [], "actions": []}',
+            "content" => '{"components": [], "actions": []}',
             "courtType" => $courtType->name(),
         ]);
     }
diff --git a/src/App/Views/home.twig b/src/App/Views/home.twig
index 0fc426a..2438ca1 100644
--- a/src/App/Views/home.twig
+++ b/src/App/Views/home.twig
@@ -52,7 +52,7 @@
 <body>
 <button onclick="location.pathname='{{ path('/disconnect') }}'"> Se déconnecter</button>
 <div id="bandeau">
-    <h1>IQ Ball</h1>
+    <h1>IQ CourtObjects</h1>
     <div id="account" onclick="location.pathname='{{ path('/settings') }}'">
         <img
                 src="{{ path('/assets/icon/account.svg') }}"