Entering the season, all the talk surrounding Ross Detwiler was that the Rangers acquired him this winter to give him a chance at the starting rotation — a role he was dying to be back in after he was moved to the Nationals' bullpen in 2014.
As a starter, Detwiler went 0-5 with a 6.95 ERA in seven starts before he was eventually moved back to the bullpen as a long man/low-leverage pitcher. In his 10 relief appearances, Detwiler posted an even worse 7.71 ERA, and finally, the Rangers saw enough. They designated him for assignment over the weekend and recalled reliever Roman Mendez.
Mendez was on the disabled list with a sore elbow and returned to put up five straight scoreless appearances for Triple-A Round Rock. With Sam Freeman chugging along pretty nicely as a lefty specialist, the Rangers no longer had a need for Detwiler's left-handed presence, as bad as it was.
Mendez had a nice run last season and started 2015 in the Rangers' bullpen before falling on some rough times and being demoted after posting a 5.40 ERA in 12 appearances.
The Rangers just hope the 24-year-old has rediscovered what he had last season, when he posted a 2.18 ERA in 30 appearances because the bullpen needs an upgrade, whether it's an internal one or via trade.