He's a straight line runner with limited physical skill that will play well against the little sisters of the poor and struggle against teams with above-average skill/talent.
He's made to terrorize the Texas Tech's of the world. On a field against better athletes like Notre Dame, he was just a guy.
But, hey, as long as there are a few Techs and UTEPs on the schedule....
I think there's little doubt that Warren was limited by the hamstring injury against Notre Dame.
Limited physical skill? OK.
But if he can stay healthy this year, just like Foreman had to prove he could in 2016, then I'm sure that whatever it is he's got, or doesn't have, will get put on full display.