You can live in that false reality if you want. Mathieu was one of the hottest names in the recruiting circuit by the time he committed to LSU.
I see two components for someone to truly be a diamond in the rough...first, you find someone no one knows about and second, you see potential in that player that no one else does. If both exist, then you have a diamond in the rough.
If Dexter Blackmon had come to LSU and become a first round talent, then he would have fit this description
TM7 has neither of those qualities and Mo has the first, but not the second.