Gibby was a moron, i remember a game (2015) vs the Yankees in a pivotal September game, 8th inning with Ellsbury, McCann and Beltran coming up (all lefties).
The guy has prime Brett Cecil in his pen, Gibby decides to go with Aaron Sanchez because he's his "8th inning guy" who promptly walks the first 2 batters.
Cecil eventually comes in and cleans up the mess but he should never have been put in that position to begin with. Point is, Gibby domb/overrated