Why are you going to sit him?Because he has four fouls.What happens if you play him?He might get a fifth foul.What happens if he gets a fifth foul?Then we'll have to sit him.So, you're sitting him so you don't have to sit him?Correct.Aren't you just handing yourself the punishment ahead of time, without actually earning it?Um … he has four fouls.
One that Koop himself quoted on this very forum during the 2012 NBA finals ;)