Tar Heels' Chizik works to solve defensive troubles
CORRECTS NORTH CAROLINA COACH TO MACK BROWN Appalachian State head coach Shawn Clark, right, talks with North Carolina head coach Mack Brown before an NCAA college football game, Saturday Sept. 3, 2022, in Boone, N.C. (AP Photo/Reinhold Matay)

CORRECTS NORTH CAROLINA COACH TO MACK BROWN Appalachian State head coach Shawn Clark, right, talks with North Carolina head coach Mack Brown before an NCAA college football game, Saturday Sept. 3, 2022, in Boone, N.C. (AP Photo/Reinhold Matay)

Sep. 03, 2022 01:38 PM EDT
FILE - North Carolina defensive coordinator Gene Chizik works with players during an NCAA college football practice in Chapel Hill, N.C., Aug. 10, 2015. The University of North Carolina's football season is set to start Aug. 27, 2022, against Florida A&M. (AP Photo/Gerry Broome, File)

FILE - North Carolina defensive coordinator Gene Chizik works with players during an NCAA college football practice in Chapel Hill, N.C., Aug. 10, 2015. The University of North Carolina's football season is set to start Aug. 27, 2022, against Florida A&M. (AP Photo/Gerry Broome, File)

Aug. 15, 2022 08:47 AM EDT
Appalachian State running back Nate Noel (5) gets away from the dive of North Carolina defensive back Cam'Ron Kelly (9) for a touchdown during the first quarter of an NCAA college football game, Saturday Sept. 3, 2022, in Boone, N.C. (AP Photo/Reinhold Matay)

Appalachian State running back Nate Noel (5) gets away from the dive of North Carolina defensive back Cam'Ron Kelly (9) for a touchdown during the first quarter of an NCAA college football game, Saturday Sept. 3, 2022, in Boone, N.C. (AP Photo/Reinhold Matay)

Sep. 03, 2022 12:47 PM EDT