They give out rankings in terms of stars for college recruits. Five stars is the max. But the ratings suck.
The past 10 years there has been over 40 of these 5 star ranked running backs. Yet most of them are marginal players in college. And even fewer of them actually have an NFL career.
Adrian Peterson is the legit NFL starter that received 5 stars. An actual back who could take 20-25 carries a game. Reggie Bush and Jonathon Stewart are the only other 5 star recruits that even had an actual career in the NFL.
So really these analysts have no idea what the hell they are talking about.