Nothing could make me happier then to see Salty sign with Twinkies and for a lot of money. I hope that he does well there as he is family. IMO it is better for the Sox long term to let him go. If we are not going to over-pay Ellsbury why over-pay Salty. The catcher position is different than any other.
I came up with a guide to rating players against each other by position I might apply the following weighting ... of course there are always exceptions to the rule:
Catcher: 35% offense, 65% defense.
CF & SS: 50% offense, 50% defense.
RF, 3B, 2B: 65% offense, 35% defense.
1B & LF: 70% offense, 30% defense.
Essentially a club can get away with a light hitting C, SS and CF as more emphasis can be placed on defense. A catcher is directly responsible for 1/2 of the game and at the professional level defense usually wins championships. Jon Lester comes to mind. A club can get away with an average fielding LF or 1B as long as they compensate with the bat. As I say there are always exceptions to the rule but I cannot put Salty in the exception bucket. Feedback is welcome.