To be fair, he could have a poor workout at the combine and that could affect his draft stock.
Not splitting hairs here but I've watched every UNC game this year except Saturdays and the guy is an absolute beast. The entire Carolina offensive line is top notch and one of the best in the entire country. Cooper and Brennan Williams could both be first rounders and you've got another guy in James Hurst who could be a first rounder next year.
Like I said earlier, Gio Bernard just had one of the best seasons ever by a Carolina RB and may be ACC POY. A lot of this has to do with him being a legitimate NFL prospect but great running games/offense and great OL play go hand in hand.
I'm not saying he's not a good player. I've seen him in person and on tape and I like him but I just wouldn't want the Panthers to take him early on.