Do the Yankees honestly need Roy Halladay?

I'm a Yankee Fan & maybe some of my fellow Yankee fans may not agree with me but i think the Yanks don't need Roy Halladay. Yanks have all that they need right now. They have Sabathia, Burnett, Pettite(If he comes back) Hughes & Joba(if they make him a starter again which i hope they don't but that's another story.) & Wang when he gets back. So in my opinion they pretty much have what they need right now. They just won a Championship without Halladay & i think they can do it again with what they have now. And also do you imagine what the Yanks would have to give up to get him? If in the end they get him fine but this is just my thoughts on it. What do you think? Thumbs up for everyone even if you don't agree.