The Mets' bullpen was one of the worst units in all of baseball last season with the second worst bullpen ERA and too many blown saves.
As always, a bullpen's success starts and ends with the closer. Frank Francisco had a poor 2012 season that is highlighted by a career high 5.53 ERA in 48 appearances. At times, Francisco pitched very effectively, but in other appearances he simply could not get the job done and even let his emotions get the best of him in multiple occurrences. Furthermore, he missed over a month with an oblique injury in June and July.
The Mets are stuck with Francisco for another season. Hopefully, he improves his pitching and gets back to being a productive closer, but if not, the Mets could turn to Bobby Parnell to close.
Parnell closed for the Mets while Francisco was on the disabled list, but was inconsistent in his new role. Overall, Parnell was 5-4 with a 2.49 ERA and arguably was the Mets' most consistent reliever this past season. He also had 61 strikeouts in 68.2 innings pitched as he used his high velocity to his advantage.
Alongside Francisco and Parnell in the Mets' projected 2013 bullpen will be long reliever and spot starter Jeremy Hefner, right-hander Jeurys Familia and southpaws Josh Edgin and Robert Carson. With a standard bullpen consisting of seven relievers, it appears the Mets will have one open spot during Spring Training. That is, unless they decide to sign another reliever before Spring Training.
Scott Atchison, Matt Capps, Todd Coffey, Francisco Cordero, Chad Durbin, Jason Frasor, Mike Gonzalez, Kevin Gregg, LaTroy Hawkins, J.P. Howell, Matt Lindstrom, Brandon Lyon, Kyle McClellan, Brett Myers, Will Ohman, Vicente Padilla, Manny Parra, J.C. Romero, Rafael Soriano, Hisanori Takahashi, Jose Valverde and Brian Wilson are just some of the current free agent relievers out there.
It's definitely possible that the Mets will target some of these names. Even some of the closers out there could be potential targets for the Mets if they decide to bring in a new closer to overtake Frank Francisco in that role.
Jenrry Mejia could be an option in the bullpen, but the Mets seem more inclined to have him pitch as a starting pitcher for the near future. Elvin Ramirez spent a good chunk of the 2012 season on the Mets, but was not particularly consistent and should be considered extra depth. The Mets are even bringing back Tim Byrdak, even though he will miss most of the 2013 season while recovering from a shoulder injury.
All in all, the Mets could really use at least one new addition to their bullpen. More additions can be made as well depending on how much the Mets' front office wants to help improve the bullpen's production.