The Warriors don't have time to give him time.
This has been the point all along.
And these generic excuses of him coming straight out of HS, having no pre-season etc don't really hold up to reality. Everyone can see he has bad hands, can't set screens, doesn't know where to be on defense, and has bad awareness and BBIQ, in general. Those are things that aren't easily fixed; they're part of your DNA. You watch any great big man at the same age, and those were never issues for them. Wiseman can get stronger, become a better shooter, have better conditioning - those are all things he can realistically improve on. But he doesn't have a feel for the game, which you either have or you don't have, and even if there's the slim chance he does end up working it out, the Warriors' current window will be long closed.