Experience
The Philadelphia Eagles not only have bragging rights over the rest of the NFC East but they have the playoff experience. Even with a few key players departing, the Eagles can still rely on the playoff toughness of players such as DeSean Jackson, Alshon Jeffery, Zach Ertz, and more.
While the New York Giants and Washington Redskins may have shed older players over the last two seasons, they still have an uphill climb. The Dallas Cowboys are legit threats to the Eagles but they must get out of their own way to make real progress.
The NFL is a team sport all the way and the Eagles have been around the longest and the trust is there from the coaches on down to the players. Just a few seasons removed from a Super Bowl win and making the playoffs for three straight years under the guidance of Doug Pederson, the Eagles are the team to beat in the East.