Joe mauer for adam wainwright?

I wouldn't do it. Napoli would kill your value at the C spot. Unless there's a guy on FA you can get that'll bring up the value of the C spot, your pitching is good with Halladay and Carpenter. So I'd keep Mauer and stay strong at C. On the other hand, Wainwright would give the the best big 3 in terms of SPs you can get. But in my opinion, I'd keep Mauer. Your batting isn't strong enough to sacrifice your best guy for pitching.