What was your goal with this?

He has the 3rd lowest PER relative to usage rate, the other guys are a rookie, a 2nd year player getting over a back injury and the often injured Jrue Holiday, a PG.
Another GM that trades for Melo would have better players in place, if he goes to Miami or Houston he's not the franchise player. That is the problem, you're treating him like a franchise player when those flaws in his game means that you cannot build a title contender around him, especially not now that he's older. We're going to reach a tipping point either this year or next when his offense can no longer offset all the deficiencies in his game, and you're going to be left with an aging ball hog that doesn't want to believe his game is falling off.