I think hes still a huge matchup problem. To me his upside is more athletic Bogey. He's a guy I could see averaging 20-25 ppg depending on the team he is on.He was a matchup nightmare at the high school level, but that's not the case as the levels go up. Unless he's going to grow a lot taller or become much more athletic that won't be the case either. He is no longer a man among boys and that will not change in the NBA. It's a reason why he completely sucked at SC and also a reason why I don't think it will get better in the NBA.
The reason he sucked at SC was because he tried to do it all himself. Granted SC wasn't good, but he still has to trust his teammates more and do more to elevate them, but just because an 18 year old didn't do that doesn't mean he's trash