Alex Cora took over a Red Sox team that won 93 games in back to back years, won the World Series his first year there with a stacked roster, and hasn't done shit since. Granted, Red Sox management/ownership is a dumpster fire and they fucked the team over with some terrible decisions (historically awful Mookie trade that people will be talking about for decades, Devers trade got nothing in return, not being able to sign big free agents), but you also can't say that Cora does anything to make them that much better.
I could see Cora being hired by the Mets because that Mendoza guy is a legit retard and I'm stunned he hasn't been fired yet.