When the Phillies added a bevy of prospects to the 40-man roster and brought in some new players during the offseason, other players already on the roster had to be removed. The position hit the hardest was relief pitchers.
When the new 40-man roster was announced, Elvis Araujo, Jimmy Cordero, and David Buchanan were all removed from the roster and are no longer with the team. By the end of the offseason, Michael Mariot, Phil Klein, and Severino Gonzalez were all either designated for assignment or released.
All of these players except for Cordero pitched out of the bullpen at some point during the 2016 season.