Atlanta Falcons
There’s no denying that Dan Reeves was Atlanta’s best coach but his success came during the ’90s. That’s why we have to say that Dan Quinn was their greatest coach since 2000. He brought the franchise to the Super Bowl and turned them into a fully-fledged contender. He also stabilized the team after years of upheaval.

Yes, that notorious meltdown in the Super Bowl stains his legacy but the Falcons were in their best place for a decade. But Bobby Petrino left them in a terrible state after he slinked back to college football. He inherited a mess after Michael Vick’s conviction. But he abandoned the team in the night with a losing record and no shame (via Clutchpoints).