The only really bad play Erdin seemed to have was that lame foul, where he put his hands up but didn't really impede the driver's lane to the basket. Fencepost defense.
Other than that, the kid looked athletic and coordinated, made some smart plays, seems to have good hands, hits his fouls shots. Looked good. Gotta rewatch some of the game tonight, watch him a little more closely on the defensive end, see if he's blocking out consistently.