Carlos Mendoza is staying put, but his lieutenants are paying the price for the Mets’ epic collapse.

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Pitching coach Jeremy Hefner, hitting coaches Eric Chavez and Jeremy Barnes, bench coach John Gibbons and third base coach Mike Sarbaugh are all leaving the team, The Post has learned.

These departures mean the organization will have a completely revamped coaching staff coming off this year’s 83-79 disappointment that saw the Mets miss the playoffs.

“It’s time for a new adventure, see where baseball takes me,” Gibbons told The Post’s Mike Puma in a text message. “Time for a fresh face in that job. Mendy and (Dav

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