The Eagles are now just one win away from an NFC East title and the NFL playoff berth that comes with it. Then again, does anybody trust Philadelphia to handle its business and beat the Giants on the road in Week 17, as it should?What has been a frustrating season now comes down to the regular-season finale for the Eagles, who stayed alive in the NFL playoff picture with their 17-9 win over the Cowboys on Sunday. Dallas technically is still alive, as well, but it can’t feel good about its chances to reach the postseason in a year many (including us) expected the Cowboys to make a deep run. MORE: Updated NFL playoff pictureThose preseason expectations in Dallas are part of the reason Sunday’s loss in Philadelphia hurts so bad, and they’re why Cowboys coach Jason Garrett is back in the line of firing with “Black Monday” a little more than a week away.Including Garrett’s iffy job security, here are our takeaways from the Eagles’ season-saving win over the Cowboys in Week 16.Eagles looking good in NFL playoff pictureThe winner of the NFC East will earn the No. 4 seed in the playoffs and likely host the Seahawks or the 49ers in the wild-card round. Thanks to Sunday’s Eagles-Cowboys result, the loser of the NFC West race likely will have to travel to Philadelphia for its first playoff game.The Eagles simply need to beat the Giants in Week 17 in order to clinch the division and the No. 4 seed. The game is a rematch of Philadelphia’s 23-17 overtime win at home in Week 14.VIDEO: Cowboys-Eagles highlightsEven if the Eagles lose to the Giants, they could still win the NFC East if the Cowboys lose to the Redskins.Both Philadelphia and Dallas will be favored in their Week 17 games, but they are far from locks. The Eagles are on the road against a red-hot Giants team (the offense is, at least) that almost beat them in Week 14. The Cowboys are fortunate to be playing at home against a pesky Redskins team.Jason Garrett likely won’t return as Cowboys coachWe’ve figured for weeks that the Cowboys coach needed to lead his team to the NFC championship game (at least) to save his job, so if Dallas indeed misses the playoffs, and if this loss to a previously .500 division rival in Philadelphia is one of the biggest reasons, then Garrett should be considered as good as gone.Of course, the Cowboys owner and general manager Jerry Jones won’t need to fire Garrett if he opts for a coaching change. That’s because Garrett’s contract is set to expire when Dallas’ season ends. The lack of an extension for the 53-year-old coach has been the biggest elephant in a room full of them. Jones’ frustration as the Cowboys have limped to a 7-8 record in Garrett’s 10th season as coach seems to be rising to the level of a fan base that appears eager to move on from Garrett.Sunday’s loss to the Eagles was inexcusable for Garrett’s Cowboys for multiple reasons, including the absurd amount of injuries still impacting Philadelphia. But Dallas should not have been in a position to lose the division in the first place.MORE: Ranking Garrett replacement candidates if Dallas fires coach Dallas has gone 1-4 in the five games it played without the rangy Vander Esch, struggling to cover running backs and tight ends in each loss. Sure enough, the Eagles picked on the Cowboys’ second coverage level throughout their win Sunday.The Cowboys can’t blame their failure on Vander Esch’s injury, of course. The multiple culprits include Dak Prescott’s off game against the Eagles, the disappearing act of wide receiver Amari Cooper and the often-baffling usage of star running back Ezekiel Elliott.But because the NFC East race is now down to the last week of the season, it’s not a stretch to say Vander Esch’s injury will have kept Dallas out of the playoffs. (Getty Images) https://images.daznservices.com/di/library/sporting_news/28/3/jason-garrett-041019-getty-ftrjpg_gemgt62ej3kw1gqkd07cbphoh.jpg?t=126458506&w=500&quality=80 The Cowboys, despite a collection of talent that led Sporting News to believe they could win Super Bowl 54, have defeated just one team with a winning record all season (the Rams last week). Now they’re an Eagles win over the Giants (or a loss to the Redskins) away from failing to reach the postseason.Keep in mind the Cowboys’ head coaching job is one of a few in the NFL that almost any coach would desire. BetOnline already has odds on who will be Dallas’ coach in 2020, and the list includes big-time names like Urban Meyer, Josh McDaniels, Lincoln Riley, Sean Payton, Nick Saban, Dabo Swinney, Jim Harbaugh, Chris Petersen and … Peyton Manning?Regardless of how many of those would be legitimate candidates for the Cowboys job, the point is Jones would have more than enough options in his search for a coach who can manage something better than a .565 regular-season win percentage and get Dallas to the Super Bowl for the first time since 1995.Garrett has been good, but good, as Jones has put it, is “not enough.”The Cowboys have missed Leighton Vander EschWe understand the irony. The Cowboys, who have been without their star linebacker since Week 12, just lost to an Eagles team that has been decimated by injuries. But the negative impact of Vander Esch’s absence can’t be understated.Vander Esch, who was a Pro Bowl selection as a rookie last season, last played in the Cowboys’ Week 11 win over the Lions. A neck injury has kept him out of the lineup and, depending on the results of an MRI on Monday, could keep him out for Week 17 and beyond.