This will remain an X-Factor until it isn’t. In the aftermath of the disappointing loss to Notre Dame, the North Carolina Tar Heels coaching staff did not have many answers for the defensive woes this season. Defensive coordinator Gene Chizik had the following to say about performance during the game versus practice: You have to be able to adapt and adjust to those on game day. And sometimes we’ve been good at that, and sometimes we haven’t. So you can’t put it on a player or a position. It starts with us as coaches, me first, to be able to…