After missing the playoffs despite the most expensive opening-day roster in baseball, the New York Mets are starting a large staff overhaul.

While manager Carlos Mendoza will return, the team is moving on from pitching coach Jeremy Hefner. Hitting coaches Jeremy Barnes and Eric Chavez and third base coach Mike Sarbaugh also won't return, the team said Friday. Bench coach John Gibbons resigned, and catching coach Glenn Sherlock is retiring.