Want to venture a reason as to why UNC's outstanding offense has only been able to muster 10 points? You don't think the fact that they can't use about 25% of the field in their game-plan has anything to do with it? You don't think the 2-3 guys they have to assign to him every time they try to drop back in a 3-5 step drop affects what's available elsewhere? You think they continuously choose to run into one side of the offensive line over and over again, even though the rest of the SC defense is loading up that way doesn't hurt their running game?
JJ Watt rushed the passer 671 times last season. You know how many times he got to the quarterback? 24. That's 3.5%. Only 4 of his 20.5 sacks came when he beat a double team. 17 of his sacks happened when Houston had the lead, and presumably, the opposing team had mostly abandoned the run so he could just pin his ears back and most of his sacks (I believe 17 or so, IIRC) came against right guards and tackles because he lines up primarily on the left side of the defense, as opposed to the left guard, which is usually the best pass protector for an offense.
I love JJ Watt, and I think he's one of, if not, the best defensive player on Earth, but defense is a team game, and getting sacks is a result of a combination of a ton of shit coming together. If UNC ran their normal offense, and blocked Clowney like a normal DE, he'd probably have 3-4 sacks tonight, and every game after, but when you have one guy that is so much better than the rest of his teammates, you game plan against it. It's what Belichick does every week in Foxboro. He eliminates the opposing team's best couple of players and makes the rest of the team beat the Pats. Tonight, the rest of the team is getting it done, but acting like Clowney is doing nothing and accomplishing nothing in this game is just remedial football observation.