Currently the two most winningest head coaches ever fired in NFL history are:
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Marty Schottenheimer from the 2006 Chargers. Career 47-33, 0.588
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Tony Dungy from the 2001 Buccaneers. Career 54-36, 0.600
Sean McDermott is now career 68-41, 0.624, including being 6-6 at the moment.
Firing him now would set the NFL record for most winningest HC ever fired.
I heard Nate Geary post game on wgr reference a stat that’s amazing. If a head coach/QB combo haven’t won a Super Bowl in their first five years together, then they never have in the history of the league.