UNC's Defensive Secondary Competition Set to Begin Posted Aug 6, 2020 North Carolina’s injuries in the secondary are merely a historical reference as the Tar Heels opened training camp Thursday. Concern regarding a lack of bodies a season ago has been replaced by questions of how best to utilize a talented and deep defensive backfield in 2020. “I really like what I see in the secondary,” Mack Brown told reporters last week. (Inside Carolina)