If it comes down to trading Ray and improving the team so be it. Just remember Ray is averaging 16ppg. He has plenty in the tank. But its quite obvious a shake up is needed. Instead of Trading Ray, How about moving him to bench and starting Marquis? Marquis was a starter in Indy where he had career high in points. Q role changes at little bit with 1st unit. He becomes more of a scorer/slasher. And then you take 16ppg scorer that Ray provides to the bench. Where he'll have a easier time to score on other teams 2nd unit. But for this to work, you need a true PG dishing out assist to Ray. Maybe a trade for Keyon Dooling? This keeps Ray's minutes down, where he is most effective. And he'll still be able to close out games.
This is a really good team, and are still contender. We had Lakers beat, Orlando Beat, Atlanta Beat if it wasn't for some 3rd Q collapse. This keeps the core guys together for another run.