Catchers are the offensive linemen of baseball—unappreciated for what they do and you only know the really good ones.
Outside of stalwarts like Mauer, McCann and Martinez and up-and-comers like Santana and Posey, the pickings are slim.
Most of the rest of the guys are backups and mediocre starters who tend to bounce around more than Megan Fox on a trampoline.
As the grueling baseball season wears on, the rigor of the position takes a toll on backstops, and a .260 batting average or a strong throwing arm could look extremely good to a team during a pennant chase.
This is my list of catchers due for address changes along with my opinion on where they could end up.
I warn you that this list isn't especially pretty. Mostly it's filled with has-beens and never-beens in contract years who might be just good enough to fill in for contenders and push them over the top.