Honestly, I thought he looked shaky on D and easily blown by. I'm not going to overreact -- you're talking about a young player in the first preseason game, with no training camp or summer league and barely any practices. But this needs to be the focus for this kid, just like it was for Langford last year. If you can turn him into an NBA-caliber defender (he's a good athlete and has the size/length, so it should be possible), everything else will be fine.