On the other side of the reliever coin is Chris Devenski who didn't have nearly the track record with Tampa that Diekman did. The Rays signed him to a major league deal late in the season (not completely unlike Tapia) after the Angels released him following their failed playoff push. Devenski had been pretty meh this season on the west coast with a 5.08 ERA in 29 appearances for the Angels.
Devenski's time with the Rays did go better with a 2.08 ERA although the sample size of nine appearances is really, really small to the point where one shouldn't draw too many conclusions. A nice pickup by Tampa Bay for sure, but Devenski's track record the last five years is hard to ignore.
Devenski is another reliever set to hit free agency and another guy that the Rays could probably live without. Everything about his pitching profile other than his admittedly strong walk rate just isn't all that exciting. His strikeout rate is fine, but he gives up a lot of hard contact and his success lives and dies with how well hitters are seeing his fastball in any given outing. If he is looking to parlay his short, but successful stint with the Rays into a decent payday, they should pass.