PITTSBURGH — The Pittsburgh Pirates have made a number of moves concerning their bullpen this season and have now brought up a veteran that should help them moving forward. Alex Stumpf reported that the Pirates are bringing up right-handed pitcher Chris Devenski up from Triple-A Indianapolis for their series vs. the St. Louis Cardinals at PNC Park. The Pirates will have to add Devenski not just to the 26-man roster, but also to the 40-man roster, meaning that they'll make two moves, sending someone down to Triple-A and then designating another player for assignment. One of those moves was sending down left-handed pitcher Hunter Barco back to Indianapolis, who they had pitch in their most recent game and called up the day prior, according to Jason Mackey of MLB.com . It's another move the Pirates are making to make sure they have available arms in their bullpen so that they can stay in the middle of a competitive race for the National League Central Division.…