Eagles WLB Brian Rolle has been replaced by Keenan Clayton in the first-team nickel defense. A safety at Oklahoma, Clayton's speed and athleticism should help prevent the kind of fourth-quarter comebacks that have plagued the Eagles. He'll slot in next to three-down backer Jamar Chaney in pass-heavy situations. Rolle will remain in the "Buffalo" package used for short-yardage and goal-line situations.