His development is way way way ahead of the curve and he looks better with each week. His jumpshot inside the 3 line has actually improved a lot, the problem is his 3 pointer has fallen off a cliff compared to last year and you don't even need to think about defending him there.
Right now he's playing from the PF spot, but he's playing it as a faceup slasher & pick and pop guy, when he's on with the jumper from the top of the key he is incredibly hard to guard because he's faster off the dribble than any PF in the league (that includes the Brow). He's turning into a point forward, but from the PF spot and ultimately I think he stays there since it will allow them to play him and Jabari together.
He's the most unique player in the NBA right now, he's a consistent jumpshot away from superstardom.