Extremely early on Jabari. A few offseasons of weight training and he’ll be better at the 5, his conditioning overall will also be improved.
I’d be absolutely stunned if the 3 ball never comes around. When he starts knocking those down then it’s all about punishing smaller guys, which again an overall improvement in strength & conditioning will help with that.
By year 3-4 you should have a very effective player.
Hopefully by then Houston will be thinking about winning & will have a more intentional, defined offense…. And a point guard.