Warren is one of the biggest ball hogs in the league, can't space the floor, and doesn't defend well. Why people want him is beyond me.
The problem is that Phoenix already has a lot of draft capital including the potential #1 pick and the 16th pick in this draft. With that roster littered with recent lottery picks I'm not sure if they'd be interested in the #24 pick to take on Turner.
If we want a non shooting wing who dribbles the air out of the ball, I'd stick with Turner. ET at least plays defense.