I saw top high school basketball for the first time on ESPN3 and not having a reference point, it's hard to know how to read these guys. It'd be interesting to follow Nerlens and others.
At his young age, Nerlens was an interesting mix of skills. Very good passer off the dribble, made a bunch of layups with his offhand but generally looked like a very raw offensive prospect. No jumper, limited post game and not a natural finisher around the basketball. As for his ballyhooed defense, he was an outstanding shotblocker both on and off the ball but a below average rebounder. He didn't have the steeltrap hands you see with great rebounders. I don't know if that can be developed given his age or not.