Brad Ausmus was the club’s bench coach in 2022 but it was reported a few weeks ago that he wouldn’t return to the role. That left a vacancy that Bush will now step into. The 48-year-old played in the minors around the turn of the millenium and then transitioned into coaching after his playing days were done. He joined the A’s in the 2005 season, coaching in the minors, eventually moving up to the big league staff for the 2013 season.

After Bob Melvin departed the manager’s chair in Oakland one year ago for the same role in San Diego, Bush was one of the internal candidates to be considered as his replacement. The job eventually went to Mark Kotsay, with Bush moving from hitting coach to third base/run prevention coach.

Among the other names in today’s announcement, they were all already in the organization except for McCarthy, who had been the pitching coach for the Padres’ Triple-A affiliate this year.

Replacing Bush as the top hitting instructor is Tommy Everidge, who’s been promoted from the same role at Triple-A Las Vegas. It’ll be the first big league coaching job for the 38-year-old, who briefly appeared in the big leagues with the A’s back in 2009. He spent the bulk of the last decade coaching his way up the Oakland system.

Pairing with Everidge is Chris Cron, who’ll join the staff as assistant hitting coach. The father of Rockies first baseman C.J. Cron, Chris Cron logged some big league time in the early 1990’s and joins the A’s after a long run working with prospects in the Diamondbacks system. Previous assistant hitting coach Eric Martins will slide over to first base coach, with Mike Aldrete vacating that post to serve as quality control coach.

The pitching instruction tandem will remain in place. Pitching coach Scott Emerson is back for his fifth full season in the role. Marcus Jensen, who (along with Bush) drew some consideration in the A’s managerial search this winter, returns to last season’s position as bullpen coach.

DECEMBER 6: In addition to the recently-documented Matt Quatraro, The Athletic’s Britt Ghiroli verified five other managerial candidates for the vacant Oakland skipper position. Included in the current group of candidates are a number of names already within the Oakland organization— third base coach Mark Kotsay, bullpen coach Marcus Jensen, and hitting coach Darren Bush. Rounding out the group are Boston bench coach Will Venable and Houston bench coach Joe Espada. Half of the group (Quatraro, Kotsay, and Venable) has already interviewed, with the remaining half expected to interview soon.

After 11 seasons of .528 ball under Bob Melvin, it makes sense for Oakland brass to look to Melvin’s cohorts for a successor. Kotsay is likely the most familiar name among the internal candidates, as he is a 17-year veteran and played for seven different teams during his lengthy career. Dating back to 2014 Kotsay has assumed a number of Major League roles, accumulating the titles of hitting coach, bench coach, quality control coach, and third base coach. Kotsay is light on managerial experience but is no stranger to the managerial rumor mill, being linked to recent searches conducted by Houston, Boston, and Detroit.

A former catcher, Jensen was no stranger to the big leagues either, appearing in 7 Major League seasons for as many teams. Jensen has been in the Oakland organization since 2007, serving as a hitting coach and manager for several of Oakland’s minor league affiliates. He’s served as an A’s coach at the game’s highest level since 2014.

Bush is a baseball veteran as well, though has seen a notable chunk of his playing and coaching days come on the indie ball circuit. Since joining Oakland’s minor league ranks as a coach in 2004, Bush has accrued a good deal of managerial experience at the lower levels. His consistent success as a minor league manager led to a Major League promotion, where Bush has served as a bullpen or hitting coach since 2013.

Like Kotsay, Espada has been a fixture in managerial candidate discussions for years. The Houston coach and former second-rounder has seen his fair share of success over the past four years, recently piquing the interest of the Giants, Rangers, and Cubs.

Venable is a veteran of 9 Major League seasons, including an impressive 20-20 campaign in 2013 for the Padres. Since his retirement, Venable has worked in advisory and coaching positions for the Chicago Cubs. Venable hopped over to the Red Sox organization in 2020 and served as the bench coach for this year’s resurgent Boston club. Like others on this list, Venable has turned heads as a potential manager for years, drawing interviews for recent Houston and San Francisco vacancies.