Three coaches who spent this past season with the A's will not return in 2012, the club announced on Friday.

Bench coach Joel Skinner, pitching coach Ron Romanick and hitting coach Gerald Perry will not have their contracts renewed, while bullpen coach Rick Rodriguez will be considered a candidate for his same position next year.

First-base coach Tye Waller and third-base coach Mike Gallego will return in 2012, the first full season under manager Bob Melvin.

The club also received outfielder Eliezer Mesa, 22, as the player to be named in the Mark Ellis trade with Colorado on June 30. The 5-foot-11, 180-pound Mesa hit .256 with seven doubles, one triple, 13 RBIs and 11 stolen bases in 53 games for Class A Modesto this past season.