Situation: Varsity boys, A6 and B6 have reported and are waiting to enter the game. Foul, A1 to shoot 2. After first free throw, horn sounds, I beckon the subs. B6 enters, but A6 points at A1 and says, "I'm in for the shooter."
Second free throw is good. Horn sounds. I beckon again, A6 enters, but A2 leaves, not A1. I had never seen this happen before. Is there any action to be taken here?