BR RODIE: ALONSO WILL GET 1ST SHOT

CARLSBAD, Calif. — Mickey Callaway’s return to the Mets bench won’t include a few of his lieutenants from last season.

In a staff shake-up, hitting coach Pat Roessler has been axed by the team, bullpen coach Ricky Bones will be reassigned within the organization and first base coach Ruben Amaro Jr., is moving to the front office in an advisory capacity. In addition, bench coach Gary DiSarcina will move to third base and Glenn Sherlock will switch from third to first. New general manager Brodie Van Wagenen announced the changes Monday at the general managers’ meetings, after The Post first reported Roessler and Bones had been removed from the staff.

Pitching coach Dave Eiland and assistant hitting coach Tom Slater will remain in their current roles.

Roessler was elevated to hitting coach last offseason after Kevin Long departed for the same job with the Nationals, but the Mets finished 12th in the National League in scoring, averaging 4.17 runs. The offensive struggles came as Yoenis Cespedes missed most of the season on the disabled list and Michael Conforto spent the first three months trying to rebound from shoulder surgery the previous year.

Bones had been the Mets’ bullpen coach since 2012, when he arrived as part of a shakeup to manager Terry Collins’ staff. The Mets bullpen ranked 14th in the NL — only the Marlins were worse — with a 4.96 ERA last season.

Van Wagenen pointed to DiSarcina’s work defensively with Amed Rosario as a factor in keeping DiSarcina on the staff.

Amaro, the former Phillies GM, has a relationship with Van Wagenen based on their shared Stanford roots and is viewed as a front-office asset who can assist with personnel decisions.

It’s expected the Mets will seek a veteran with National League experience for the bench coach role. Jim Riggleman, like he did in 2012, will interview for the job, according to an industry source.

“Our goal is to try to give Mickey as much support as we can in the dugout,” Van Wagenen said. “And having somebody who is an experienced bench coach that can help him with in-game management we thought would be a win for Mickey and be able to help him with his development.”