The issue with N'Kosi is that he just doesn't seem to have the maturity to be a major D-1 QB. No doubt all QB's party, have fun, etc, but you don't see guys like Tua, Trevor Lawrence, Haskins, or even Francois, Dungey, or any other half decent ACC QB's making the same types of mind-boggling social media decisions. Manny could definitley straight him out and squeeze every last bit of talent out of him, but we've probably got to err on the side of skepticism right now.
I will say that N'Kosi was put into the worst possible situations this year. Richt's playcalling never got him into a rhythm, and Richt put him in a lot of do or die situations. Also, Jon Richt was his QB coach, and we can't doubt the negative effect he had on Kosi. With Jon Richt, N'Kosi has basically been getting high school level coaching since day 1 on campus. Enos could come in and turn him into a stud, as he's done with multiple QB's throughout his career. First though, he's got to mature a lot.