I'm going to have to say Anthony Mason Jr.
There are so many questions surrounding him. Where he fits in? What does he give us? Knock down spot up shooting? Will he board on both ends of the floor? Will he learn to take complimentary role, get into open spots, know when to take it inside?
I think he can be so valuable to us but I also think he can hurt us as well. Mason in small doses can be really valuable. He is a tough cover because he has deep range and he is just so long. Will Norm run different sets of offense for when different guys are on the floors and use each player for their strengths.
I think the less Mason puts the ball on the floor the better player he is. This is not to say I don't want him ever to put the ball on the floor but I'd like to see him get the ball on dribble and kick, I'd also like to run ALOT of high pick and rolls with him. He can turn and shoot, roll and dunk, and I think Mason is an underrated passer in terms of finding the open man.