Catcher is, for me, the most important position in all of baseball; not only does a catcher contribute to the team's offense but, more importantly, the catcher controls the pitching staff, may call the actual pitches thrown, keeps baserunners honest and can even help align the infield. Without a doubt the catcher has the most responsibility of any player on the team.
Since the catcher position is so important, and comes with so much responsibility, teams will give a lot of consideration into who they put at that position.
This year there aren't a lot of starting catchers available via free agency, especially young ones, but the best one available has to be Ramon Hernandez. Aside from his career .265 BA and .329 OBP, Hernandez has a career 21.1 Wins-Above-Replacement and a career 30 percent caught stealing.
Most importantly, however, Hernandez knows how to handle a pitching staff and can be extremely valuable in mentoring young pitchers.
He'll be 35 years old next year, probably reaching the point where being an everyday catcher isn't possible anymore, but in a platoon role, or as a backup, Hernandez could be very helpful to a team.
The question is, though, will he be willing to accept a less prominent role and for the money that goes along with it?