Without question the biggest need to the Mariners this winter is offensive firepower. They've already bettered themselves by letting go of two offensively deficient commodities, Chone Figgins and Miguel Olivo.
The end of Olivo's contract leaves Jesus Montero and John Jaso as backstops. Montero hit well in his first full big-league season, but struggled behind the plate. He threw out just 11 of 65 would-be base stealers. Offensively, Montero was impressive for a 22-year-old, slugging 15 homers with a .684 OPS.
Jaso didn't get to play every day, but he always seemed to come through in the clutch when he got the call. He had the highest batting average on the team at .276, and walked more than he struck out, racking up on base, slugging and OPS averages of .394, .456 and .850, respectively.
If the season started today, Jaso would most likely start at catcher with Montero in the lineup as DH. Seattle also drafted former Florida catcher Mike Zunino third overall in the 2012 draft. The 21-year-old hit .360/.447/.689 with 13 home runs in 44 minor league games last season.
All that being said, the Mariners need hitting, and their situation at catcher is muggy due to Montero's inexperience.
The top two free-agent catchers are off the board already (Napoli, Martin), and if the Mariners are looking at catchers for next season they need to act fast.
Here are three reasons why they should sign A.J. Pierzynski.