Collins, Collier, what difference does it make? Both suck.
As for the whole Johnson thing, with him taking up more minutes and becoming the focal point of the offense, one of their good but not great swingmen becomes a very tradeable commodity that can get them some front line players in return.
If Diaw is so great, why didn't they trade him for a big man all by himself? Answer: because the guy sucks.
Again, for the billionth time (as stated by myself and several others in this thread and others), Diaw is pound for pound the softest offensive player in this league.
Anyone on this board could walk out on the court and shut the guy down offensively, he's that soft. Crowd the guy and he can't wait to get rid of the ball.
I just find it humorous this notion of yours (and only yours, did you notice that?) that the Phoenix brass is sitting in a room somewhere high-fiving over getting Diaw, and how completely misguided that idea is.