Football

That tree stands in front of the Addams Family mansion. There are no leaves, no smaller branches, and what is there is dry and dead. Once they get fired from their HC gigs, many end up crawling back to Foxborough.

Let's go down the list, shall we?

Al Groh - Fired after 1 year as the Jets HC, went to coach at U of Virginia, now works as a football analyst
Romeo Crennel - Fired as a HC twice, last served as an Interim HC for the Texans in 2020
Eric Mangini - Fired by the Jets and Browns, now works as a football analyst.
Bill O'Brien - fired by the Texans after finishing 4-12 and mortgaging the team's future by trading multiple first round picks for a left tackle.
Brian Flores - fired by the Dolphins after 3 seasons and now is a defensive assistant for the Steelers
Matt Patricia - fired by the Lions and is now the offensive coordinator for the Patriots
Joe Judge - Fired by the Giants after 2 seasons, went back to New England as a offensive assistant

And
Josh McDaniels - Fired by Chiefs, returned to New England, was offered Colts job, then turned it down at the last minute, now the Raiders HC.