PHOENIX (AP) _ After a dismal season, the Arizona Diamondbacks offered hitting coach Dwayne Murphy and third-base coach Eddie Rodriguez managerial jobs Tuesday in the minor league system.

Rick Schu, minor league hitting coordinator for the Diamondbacks last year, will replace Murphy, a member of Arizona's staff since 1998.

Al Pedrique, manager of the Triple-A Tucson Sidewinders for the last two seasons, will replace Rodriguez, who started working for the team in 2001.

Bench coach Glenn Sherlock will take over as first-base coach.

Robin Yount will move from first-base coach to assisting Manager Bob Brenly on the bench.

Pitching coach Chuck Kniffin and bullpen coach Mark Davis will remain in their positions.