Offensively he's not a one-on-one threat at this point, but can create some off the dribble. He's simply not a breakdown Isolation player. He does not handle well nor is he an inside out, spot shooter. He has a solid skill set, but his defense is ions better than his offense.As it stands his ceiling is defensive specialist type on the perimeter at best, if he can't improve offensiively he'll be limited to role player minutes.
The kid would be an NBA player if his name were "John Johnson" but having to deal with the expectations of being a hall-of-famers son has to be difficult. That said it's hard to imagine anyone doing it better than this kid He's got the potential to have a long career as a defender, but he has to show that he can stay on the floor offensively. If he can gain any kid of perimeter game or a pick and pop jumper or slash, he should have a nice NBA career. Should he not develop one, like all 2nd rounders, he could be out of the league in 2 years.