The Super Bowl champions are talented, of course, but they're also an incredibly deep team. It's tough to find many holes on this roster, much less a "fatal flaw." They've added to a defense that harassed quarterbacks and suffocated running games like no other last season. All the key skill-position pieces to their thrilling offense are set to return. If there's one area the Eagles could stand to further fortify it's their future at left tackle. As of now, Jason Peters is set to return to the team after playing just seven games last season before going down with a serious knee injury. His backup, Halapoulivaati Vaitai, had an excellent playoff run, but the left side of Philly's line was an issue during the regular season. The Eagles allowed the fifth-highest pressure rate (11.9 percent) from the left side. Vaitai will also be a free agent after the 2019 season and Peters will be well into his late 30s. At that point, Philadelphia would be wise to have another option in-house to assign the task of protecting Carson Wentz's blind side. It's a nice life when you have to stretch this far to identify a "fatal flaw," but being this loaded allows Howie Roseman and company to plan for this roster's future.