a somewhat similar phenomenon happens in basketball. when the game is not competitive, no leader is needed and everyone just plays to their ability (and hopefully to their strengths).
but when the game gets competitive, it's easy to fall apart and get beaten without a leader. on offense, that's usually the point guard (e.g., steph curry), who implicitly chooses who gets the ball, when they get it, and for how long. on defense, a forward/center (e.g., draymond green), who can see the whole floor in front of them, often has the responsibility of coordinating the defense to minimize gaps and mismatches.
but when the game gets competitive, it's easy to fall apart and get beaten without a leader. on offense, that's usually the point guard (e.g., steph curry), who implicitly chooses who gets the ball, when they get it, and for how long. on defense, a forward/center (e.g., draymond green), who can see the whole floor in front of them, often has the responsibility of coordinating the defense to minimize gaps and mismatches.