I think he can, because like he showed tonight he's an opposing teams nightmare and a game changer. He doesn't even have to get a steal or block a shot to be affective. Example, when Smith had a clear chance to dunk it, as soon as he could sense that Moon was nearby he lost his train of thought, fumble the dunk and turned over the ball.
As long as shows a willingness to learn, the sky's the limits for Jamario. What a steal for us. (pardon the pun)