Extra Points: Finding Defensive Identity Posted Apr 11, 2014 Two weeks into spring practice, signs are emerging that the Tar Heels in 2014 could stride toward better upholding their leg of the three-pronged stool. They have two young, aggressive cornerbacks in Brian Walker and Des Lawrence. Darius Lipford has moved to middle linebacker and gives the defense the edge of speed and size they've not had there. (GoHeels.com)