Of all the things that were wrong with the 2015 Oakland A's, the bullpen was probably the biggest weakness. Even when the other parts of the team managed to string together a good game, the relievers usually found a way to hand the win back to the opponent. They were the Bringer Of Rain On Your Parade. To add insult to injury, the unit seemed strong entering the season, full of pitchers with good track records and recent success whom most of us trusted, so this failure was relatively unexpected.
This analysis of the bullpen will be split into three sections.