Pistons are being incredibly smart with Drummond. They've basically let him use his athleticism defensively and regulated him to garbage plays on offense. He has no post game whatsoever, but he's being put into a situation where he can be successful with the role they've put him in.
US on the other hand jerk around Trob's minutes and have yet to define his role on the team. Shows how big of a difference coaching makes with young players