"This is my 28th year of coaching football and I've yet to ever see anything like this," Carroll said. "… His actions have brought all this on. He plays hard and he has a good motor. We're just glad he's on our side."
Clowney, a defensive end from South Pointe High School, says he has scholarship offers from every school in the nation. His junior season stats speak for themselves - 144 tackles, including 43 for a loss and 23 sacks, three forced fumbles, 29 QB hurries, and four pass breakups.
"He's 6-6 and ½, he weighs 243 pounds, has a 36[-inch] vertical, he runs a 4.48 forty, he power cleans a little over 300 pounds, and he just has a good motor," Carroll said of Scout.com's No. 1-ranked overall prospect. "He runs – he doesn't stop... If you go online and watch his highlight film that doesn't do him justice; you've got to watch him against a good offensive lineman. He plays hard from sideline-to-sideline from goal line-to-goal line. He's a go-getter that hates to lose… He's a great competitor. He has a great heart and soul and desire for the game and a strong will."
With so many schools pursuing him, the recruiting process has been overwhelming at times for Clowney.
"All these internet sites can call him and ask him, and his five visits will change every week," Carroll said.
Clowney's latest favorites list is compromised of Alabama, Clemson, Florida State, LSU, Miami, North Carolina, and South Carolina.
"Those [schools] are the ones I'm most interested in," Clowney said.
John Blake, UNC's defensive line coach, has been leading the Tar Heels' recruiting efforts.
A couple of weeks ago, Blake made an evaluation visit to South Pointe.
"All these coaches – all 50-60-70 of them that have been through here – talk about his athleticism, how barring any serious injury and he doesn't get any trouble – which he has never been – that he has a future possibly in the [National Football] League," Carroll said.
Clowney spoke to Blake following the visit.
"He was just talking about what they're going to use me at up there and how they'll play me and how they're going to get me into the [National Football] League," Clowney said.
Clowney has made very few recruiting visits. Among the limited trips was UNC's Spring Game back in early April.
"One of my friends was talking about going up there," Clowney said. "I was like ‘I'll go up there with you since I really don't have anything to do.'"
With his mother in tow, Clowney arrived at Kenan Stadium just before the kickoff of UNC's Spring Game. Because of his late arrival, Clowney's visit only included watching the game.
"[The visit] went well," Clowney said. "Their defensive line is going to be real good this year. Robert Quinn and Marvin Austin are good."
Prior to the visit, UNC wasn't much of a player for Clowney. Since the visit, UNC is typically mentioned when Clowney names favorite schools.
"It made me interested more," Clowney said. "I want to see the college now."
Clowney is considering making a return visit to UNC this summer.
On June 18 and 19, Clowney will visit Alabama. He's also working on travel details to visit Auburn during the Big Cat Weekend.
By the end of the summer, Clowney plans on naming the five schools he will officially visit.
At the Under Armour All-American Game, Clowney will announce his collegiate destination.
"Whoever makes me feel at home, I'm going to commit to them," Clowney said.