The Denver Broncos are turning to Dennis Allen to fix the league's worst defense. The Broncos have signed the former Saints secondary coach as new coach John Fox's defensive coordinator. Allen served as New Orleans' secondary coach the past five seasons. The Broncos originally offered the job to former Seattle and Atlanta coach Jim Mora, who turned them down last week. The new staff will convene in Mobile, Ala., this week for Senior Bowl practices. Read more: http://sports.espn.go.com/nfl/news/story?id=6056417