Portland is on a roll right now. No, not of winning games.. of fleecing people with bad players. I'm sure they're going to want another Danny Ainge special for him. We don't want to be on the receiving end of their trade. Yeah Zach would be worth a flyer on expiring contracts + filler + draft picks, but you can't sacrifice good players for him, because you must always have the option of benching him when he refuses to play hard, or play team ball.
Yes his personal offense is great, as is his rebounding. His effect on team offense and defense, though, is so negative that it just about completely offsets the positives he brings. He does not pass the ball very much (2.2 assists, for the guy who has the ball in his hands all the time, and a .69/1 assist/TO ratio. That's down in the territory of a center, and not even a very good one. Not what you want from a power forward.), and coasts on defense.