He does struggle with on-ball defense as well as off ball defense. He loses his players all the time when he is off ball because he is ball-watching. He is susceptible to cuts or when someone passes to his teammate. He is not a good on-ball defender. He can get beat and in the NBA, there will be quicker guards and small forwards. There are not going to be too many defenders in the NBA in which his size will create a mismatch. He does need to hone his shooting so he is more consistent. I saw several players on the court last night who played "better" than he did That being said, I know why he is considered a prospect. It is interesting how he is and other players may not be