Knicks are such a wreck that they are willing to trade KP. One reason could be, a guy his size does not last as long as someone else a bit shorter in the NBA. All of the games and pounding.
It seems PJax is waiting out Melo's contract. He inherited Melo and not re-signing him would have been a political disaster. Signing Noah and trading for Rose? They both can still play some, just not enough. Noah's contract may be one of the worst in the league.