Jeremy Hefner was announced as the Mets’ new pitching coach on November 26, 2019 — back when the organization was owned by the Wilpons, the roster was constructed by Brodie Van Wagenen, and the coaching staff was set to be led by highly-anticipated rookie manager Carlos Beltrán. Since that date, the Mets have been sold to a new owner, switched general managers (or president of baseball operations) five times, and cycled through a trio of managers, bullpen coaches, and hitting coaches. Through all the chaos, Jeremy Hefner had remained; but on October 3, amid a sweeping wave of turnover after the Mets’ stunning late-season collapse, Hefner’s time with the Mets came to an unceremonious end.

Only four men have held the position of Mets pitching coach for at least six seasons: Rube Walker (196

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