I think he's ready to play in the NBA right now. His passing and court vision is better than most players. He's limited athletically, and probably needs to improve his jump shot...but other than that, he's the real deal. Diaz is still a bit raw, he needs to refine his game from what I've seen in the summer league. Not that Diaz absoultely needs a year in the NBDL, its just that instead of riding the bench or maybe getting a few looks, he can still play all year and improve hisself.