I like the idea of keeping Miles.
As for the Jazz "talking trash" about him, I'd say he brought it on himself. If you're a back-up and near non-roster player, you need to be playing in the summer league and improving your game. Miles came into camp last year out-of-shape. An in-shape miles MIGHT have challenged Brewer for the starting spot. And apparently, he learned nothing from that, and is doing it again this year.
I like the talent; I'm not sure about the head. But Utah has to develop something more if it's seriously going to compete for a championship. A strong Miles would help, and the potential to trade him and Milsap, who we may not be able to keep, for a difference-making veteran might prove useful.