Luke DeCock and Mark Armstrong break down the defensive changes for UNC

News & Observer columnist Luke DeCock and ABC 11's Mark Armstrong talk about the impact of UNC's new defensive coordinator Gene Chizik on the Tar Heels' physicality. Video by ABC11
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News & Observer columnist Luke DeCock and ABC 11's Mark Armstrong talk about the impact of UNC's new defensive coordinator Gene Chizik on the Tar Heels' physicality. Video by ABC11