As long as the Eagles have Wentz and a core group of skilled position players on offense, this team should, on paper, be in legit contention for at the NFC East year-in/year-out. That's the easy part. The harder part is being in legit SB contention and that's contingent on the hard part - building the rest of the team - lines of scrimmage, defense, special team, and depth on the player side and, as @allentown mentions, having the right coaching staff in place.