The biggest concern, imo, is the lack of rebounding. That guy should be a board vaccuum. He should have no problem averaging at least 8 per game. Double digits should be his goal every game. That is a concern, and could become a real problem given his role on the team. With Nurk or Kessler on the floor at the same time, it isn't as big a deal, but I could see that being a real limiting factor going forward.
Also was it just my limited opportunity to watch the whole game, or does he seem to really take some plays off, like more than most? That was a bit underwhelming thing to see. Again, I didn't get to see the whole game, and obviously not every person is on every second of every game but it seemed that fairly often, too often for my liking, he was content just to sit and watch rather than get in there and get his hands dirty.