The Athletics bullpen is now pretty good now that it has left behind The Dark Times.
The Oakland Athletics bullpen suffered its worst 30-game stretch of the year between April 21 and May 22, when it had a 6.17 ERA. In that stretch, the A's went 7-23, falling from 7-7 to 14-30. The bullpen's record was 2-8 with six blown saves. For shorthand, I shall refer to this period as "The Dark Times."
Since The Dark Times, however, the A's bullpen has been quite good. Since May 23, A's relievers have enjoyed a 3.26 ERA.