Several of the Oakland A's minor league coaching staffs will have slightly different looks in 2012. All of the managers for the A's six US minor league affiliates will be the same as they were in 2011: Darren Bush will be managing in Sacramento, Steve Scarsone in Midland, Webster Garrison in Stockton, Aaron Nieckula in Burlington, Rick Magnante in Vermont and Marcus Jensen in Arizona.
The Midland and Stockton coaching staffs are the only ones that will be returning all three coaches from 2011. Don Schulze will remain as pitching coach and Tim Garland will continue as hitting coach for the Rockhounds. In Stockton, Brian McArn will return as hitting coach and Craig Lefferts will continue on as pitching coach.
In Sacramento, Scott Emerson will return for a second season as the River Cats' pitching coach, but the hitting coach position will be filled by Greg Sparks for the first time. Sparks had been the A's roving minor league hitting coordinator.
Replacing Sparks as the A's roving minor league hitting coordinator will be Todd Steverson, who served as the River Cats' hitting coach last season. Gil Patterson will return for another season as the A's roving minor league pitching coordinator.
In Burlington, Haas Pratt is back as the Bees' hitting coach. He will be joined by pitching coach John Wasdin, who served in that same capacity for the Vermont Lake Monsters in 2011, his first season coaching in the A's system.
The Lake Monsters' hitting coach will be Casey Myers once again. Ariel Prieto, who was the Arizona A's pitching coach last season, will assume the pitching coach duties for Vermont.
Jimmy Escalante, who was the Bees' pitching coach last season, has moved onto the staff for the Arizona A's. The AZL A's will be welcoming back Juan Dilone as their hitting coach in 2012.
The A's also announced on Thursday that they had extended their Player Development Contract with the Midland Rockhounds for two more seasons.