Doc has been playing Randolph for 12-15 mins per game for the last 10 or so games.
Shav has clearly made it into Doc's rotation at this point and now he is trying to get Shav to learn how to stay on the floor so he isn't a liability and both knocking himself out of games and also putting the C's in the penalty sending a team like the Heat to the foul line far too quickly.
Doc's used this approach before, telling guys if they don't do a certain thing he is going to bench them. He is trying to get through to Shav somehow before the playoffs start so he can actually be serviceable. I don't know if its going to work, but something needs to change for Shav. Yes he is getting "rookie fouls", but that isn't going to change so Shav needs to learn how to work around it.
He made a point to Shav, that if he doesn't manage to get himself under control in terms of fouling he is going to find himself on the bench permanently and also gave Wilcox an extended run.
I have no problem with it. Randolph needs to adjust his game if he wants to stay on the court. Maybe this gets through to him.