I am a high school coach. One of my players has their father as their hitting coach. Several times before games he has come to our cages and worked with his daughter on hitting before the game. As a coach, I believe practice time and pre-game time are "mine". I think it's great dad is involved with with his daughter, but if he needs to coach her up, he needs to do this on his time, not mine. I wouldn't mind if this was done before/after practice or before we meet as a team on game day. Am I wrong thinking this way?