Can't seem to insert quotes atm so here goes
Portland's problem is injuries. With Lillard out they needed a scorer, that's why they picked up Melo. It's a non-guaranteed contract until January and once Lillard gets back, if he's still a +/- black hole they will probably cut him
As to the suggested trade, i don't see Philly being interested on Paul. The player i expect OKC to trade is Gallo, who is actually exactly what the Blazers need right now btw, a mostly efficient scorer who can put up 20 a night no matter what. Gallo also offers decent defence at the 3 and 4 positions. Expect a few playoff teams in need of an extra scorer to try for him. Expiring contract too