The NFL has never seen anything quite like the Eagles’ warp-speed collapse

Two months ago, the defending NFC champions were the toast of football with the inside track on a repeat Super Bowl appearance. Then came the wildest in-season unravelling in NFL history

It's long been said the NFL stands for Not For Long. Change comes quickly in a copycat league where winning strategies are examined, analyzed and imitated and constant innovation is central to continued success. But even by that standard, it's difficult to recall a more rapid fall from grace than what's gone down with the Philadelphia Eagles over the past two months.

The Eagles were the envy of the league as recently as seven weeks ago, a winning machine fronted by an energetic young coach, ascendant franchise quarterback and one of football's most talented rosters from top to bottom. After romping to last year's NFC championship and coming up three points short of winning the Super Bowl, they'd raced out to the NFL's best record at Thanksgiving and appeared on course for a return trip to the sport's biggest stage.