Eddie Butler was one of the worst pitchers in all of baseball in 2015, and there's little evidence that he's going to turn things around.
Eddie Butler is the first pitcher to appear on our list. He pitched the fifth most innings for the Rockies in 2015 with 79 1/3, and he made the fifth most starts with 16. While Butler's 5.90 ERA places him behind both Kyle Kendrick (6.32) and David Hale (5.09) among Rockies' starters with at least 75 innings pitched, Butler's inability to strike batters out, and his proclivity to walk them, mean that he was the least valuable Rockies pitcher in 2015.