Swinney knows No. 2 Clemson must improve after close UNC win

Clemson's Tee Higgins (5) celebrates his touchdown with Justyn Ross (8) during the fourth quarter of an NCAA college football game against North Carolina in Chapel Hill, N.C., Saturday, Sept. 28, 2019. (AP Photo/Chris Seward)

Clemson head coach Dabo Swinney yells to an official during the fourth quarter of an NCAA college football game against North Carolina in Chapel Hill, N.C., Saturday, Sept. 28, 2019. (AP Photo/Chris Seward)

Clemson's Travis Etienne (9) celebrates his touchdown with Trevor Lawrence (16) and Tee Higgins (5) during the second quarter of an NCAA college football game against North Carolina in Chapel Hill, N.C., Saturday, Sept. 28, 2019. (AP Photo/Chris Seward)