UNC DC John Papuchis On Preparing For The Unknowns Of Cal Posted Aug 31, 2017 UNC defensive coordinator John Papuchis met with the media Wednesday to discuss Saturday’s season-opening opponent, California. "Opening games in general there are a lot of unknowns. From year to year to don’t know what schemes change based on personnel or philosophies people may have. But when you have a new staff you really don’t know." (Tar Heel Illustrated)