To be honest, I think you're making the proverbial mountain out of a molehill.
You have two guys that are legit fantasy #1's in Santana and Hernandez, with a supporting cast of Sabathia, Lowry, and Cain. I see Cain being a sleeper and putting together a solid rookie season.
If anyone in your league is weak at catcher, consider packaging Kendall with a Sabathia or Lowry to upgrade a starter. If having an extra catcher is that valuable to your team, you should be able to find someone like Willingham or McCall as a free agent who will more than likely outvalue Kendall, anyways.
Please check back with my post. I responded to your comments.
http://www.fantasybaseballcafe.com/foru ... p?t=178334