• In this Nov. 24, 2012, file photo, Auburn coach Gene Chizik watches from the sidelines during the second half of an NCAA college football game against Alabama in Tuscaloosa, Ala. Chizik won a national championship as a defensive coordinator at Texas, then won another as head coach at Auburn. Now, after a two-year hiatus to work in broadcasting, Chizik is North Carolina's defensive coordinator, charged with turning around a woeful unit as preseason drills start next week. (AP Photo/Dave Martin, File)

    Chizik returns to coaching to fix Tar Heels’ woeful defense

    CHAPEL HILL, N.C. (AP) — Gene Chizik built one of the nation’s top defenses as an Auburn assistant, worked as defensive coordinator during Texas’ national-championship run then returned to the Tigers to win another title as head coach.