Bench coach John Gibbons resigned and catching coach Glenn Sherlock is retiring.

Hefner is being replaced despite some notable success stories during six seasons with the Mets, including David Peterson and Sean Manaea.

Peterson was a 10-game winner in 2024 with a career-best 2.90 ERA. Manaea tied his career best with 12 wins last year and a 3.47 ERA. But that number ballooned to 5.64 in 15 appearances this year, including 12 starts.

Pitching and defense were the biggest problems for a team that went 38-55 over the final 93 games after being an MLB-best 45-24 in June. The offense wasn't free of blame after the offseason signing of Juan Soto to a record $765 million, 15-year deal. The megadeal helped boost the Mets' major league player spending to $429 million in payroll and projected luxury tax.

When declaring this week that Mendoza will return, President of Baseball Operations David Stearns said the rest of the coaching staff would be evaluated.

Assistant pitching coach Desi Druschel and bullpen coach Jose Rosado have been given permission to speak to other teams. First base coach Antoan Richardson, strategy coach Danny Barnes and coaching assistant Rafael Fernandez have been invited back.