In sports, no job is forever. Coaches are hired to be fired and no matter what kind of success you have at a franchise, the only certainty is that one day they will be replaced. Hopefully, you get to do so on your own terms.
For most franchises, winning a championship is a defining moment that hangs banners from the rafters, fills trophy cases with hardware, and coaches get honored with statues in front of the stadium or streets named after them. Some get revered to the point of legend (Ditka!) yet some see their honeymoon end rather quickly. There have been plenty of coaches and managers who didn't last long after they brought their teams to the top of their sport.
It happens in a variety of ways. Some coaches have a toxic relationship with management that forces them out. Some struggled to recapture the glory days and were quickly let go. Sometimes outside forces bear down on the situation and force a move. It recently happened when the Philadelphia Eagles fired Doug Pederson just three years after he led them to their first Super Bowl title. It can sour very quickly.
Here are 20 times a head coach was let go within four seasons from bringing their franchise a championship.