Brad Ziegler was a nondescript career minor leaguer who the A's called up on a whim. Since his promotion to the Majors, he's gone on to rack up 19 scoreless innings over 17 games, while only allowing 11 hits and 4 walks. That's a ZERO era and 0.79 whip, not a bad way to start your career as a reliever.
Super utility man Willie Bloomquist has played every position for the Seattle, with the exception of catcher and pitcher, and played them well over his 7 year career. He's nothing special at the plate as his career .642 OPS would suggest, but his versatility should not be undervalued. Willie possesses next to no power, and he just collected his first extra base hit of the season on July 10th after 27 straight singles to begin the year.