I agree with almost all your musings. I have two sets of comments.
WOODHEAD
We really should extend him as soon as possible. And I do NOT want us to trade one of our running backs. We FINALLY have a solid running game, with a KR coming back next year who might contribute.
MCCOURTY
There are two keys.
First, Gregory is the key. If he is healthy, I think that the safety position is in good hand with Wilson and Gregory. Chung's health would also help in certain situations.
Second, McCourty is a solid corner. Having McCourty, Talib and Dennard as our 3 primary corners would be fine. This gives us Cole as a sub for any position and as our dime back.
BOTTOM LINE
Given a bit of health, Belichick will have revamped the 2011 secondary. Of the starting (including nickel) five, McCourty is our only carryover. Even the dime is new. Gone are Moore and Dowling. Demoted are Arrington and Chung. This is truly an amazing transformation. And the current secondary is much better than 2011, even before Talib takes the field. Extend Talib and Cole and we will be in fine shape for 2013. We even have Ebner, our developmental back for 2013 and beyond. I am NOT saying that we shouldn't be looking to upgrade in 2013. We should always do that. After all, we would still have Chung and Arrington to replace.