Tony Vitello will be tasked with assembling a new group of pitching coaches.
Pitching coach J.P. Martinez has left the Giants to join the Atlanta Braves as the team’s bullpen coach, while bullpen coach Garvin Alston confirmed to this news organization that he will not return for next season.

Martinez and Alston represent the latest coaches to leave the organization. Bench coach Ryan Christenson and third-base coach Matt Williams departed shortly after Bob Melvin was fired. Christenson took a position to become the Athletics’ first-base coach.
Additionally, hitting coach Pat Burrell will stay with the organization but is unlikely to be part of Vitello’s coaching staff, according to the San Francisco Chronicle. Assistant hitting coach Damon Minor is also no longer listed as a coach on the Giants’ website.
While Martinez and Alston are departing the organization, Jayce Tingler will reportedly be joining Vitello’s coaching staff, likely as a bench coach. The Chronicle first reported the news, which has not been announced by the Giants.
Vitello and Tingler were teammates at Missouri, and Tingler’s experience at the major-league level should be invaluable as Vitello navigates his first professional season. Along with managing the San Diego Padres for two seasons, Tingler has been a coach for both the Texas Rangers and Minnesota Twins. Tingler is also bilingual and has experience coaching in the Dominican Republic.
As of Friday afternoon, the only holdovers from last year’s staff appear to be assistant hitting coach Oscar Bernard, first-base coach Mark Hallberg, catching coach Alex Burg and major league quality control coach Taira Uematsu. It is unclear whether they will stay in those roles going forward.
Martinez, 43, spent just one season as San Francisco’s pitching coach after Bryan Price stepped down after the 2024 season. Price, too, only spent one year as pitching coach under former manager Bob Melvin.
Prior to becoming the pitching coach, Martinez spent four seasons as San Francisco’s assistant pitching coach. In 2025, the Giants finished 10th in ERA in the majors and sent three pitchers — Logan Webb, Robbie Ray and Randy Rodríguez — to the All-Star Game. Martinez was also one of the Giants’ few coaches who also spoke Spanish, another being assistant hitting coach Oscar Bernard.
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With Martinez and Alston gone, Vitello will have to decide if he wants to look internally or externally to fill the vacancy.
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