We love to talk about flashy running backs, speedy receivers, star quarterbacks, and playmaking defensive backs, but football is a physical game that is ultimately decided in the trenches. You must have a good offensive and defensive line if you want to have real success. There are some teams that have a good year here and there with mediocre lines, but title contenders need to be strong up front.
The Eagles addressed the offensive line. They kept all their veteran players. They re-signed Stefen Wisniewski and added Chance Warmack. I think you can make a legitimate case that the Eagles have the deepest line in the entire NFL.