I mentioned this in another thread, but I think 1 key to unlocking much more growth in his game is more confidence/better ball handling in traffic and one on one. There are so many times where I think he can get a step on his man with the dribble but he pulls the ball back. If he was more aggressive in those situations with his first step, speed, and athleticism it could unlock his potential.
It's frustrating to watch because you can see a path for him to drive, and he doesn't do it often.