3) Omar Narvaez
Signing Omar Narvaez last offseason made some sense as he represented a clear upgrade over James McCann, but guaranteeing him a second year never made sense at the time and looks a whole lot worse after everything that transpired last season.
Narvaez missed much of the season due to injury and did next to nothing when healthy, posting a .580 OPS in 146 plate appearances. As long as Francisco Alvarez is healthy Narvaez won't see much action, and with Tomas Nido in the minors the Mets don't exactly need to hold onto the veteran backstop, especially if they don't think he can produce much offensively.
Mike Puma of the NY Post reported earlier this offseason that the Mets have made Narvaez available. While it's hard to see any team showing interest in him at the $7 million figure he's owed, there could be interest if the Mets eat most or all of the contract. Steve Cohen has shown time and time again that he's willing to eat money for the right deal. Getting anything back for Narvaez would be the right deal.
It's hard to see a deal involving Narvaez occurring in the offseason, but once Spring Training starts, there's a chance catchers around the league get dinged up. If teams are looking for a veteran catcher for cheap, Narvaez could be one they turn to. Having Nido as a safety net makes him more than expendable.