White's jumper seems to have a natural fade to it, a la Dirk. Between that, his crafty pump fakes and hesitation moves, I think he'll be able to get his shot off against pretty much anyone. Dude is a gamer.
As for Murray, I'm not really concerned. The staff usually gives players in his position something to work on. Last year he used his athleticism to score with ease around bad the basket, so I don't know what more he has to prove from that aspect of his game. They clearly want to see how he performs as a facilitator and distributor. For both of those, I'd give him a solid review. That said, his lack of effort on the defensive end was concerning. He'll need to be more consistent on that end to earn minutes with Pop.