The Eagles' defense is struggling early in training camp, with Sean Mannion's first year as a coordinator and installing a new system. This comes against a group of Pro Bowlers at every level and a defensive coordinator, Vic Fangio, who has coached for over 40 years. Despite this, Saquon Barkley and Dontayvion Wicks welcome the challenge. The team's struggles have been noted through the first three days of training camp. If there is no improvement until mid-August, it may be time to sweat.