This is my opinion based on two Stanford games I watched.. he isn't a first round talent.
He is very stiff from the knees up, lacks an NFL burst, and relied way to much on his raw strength to punish the opposition.
I think he may be a tweaner.. running back / full back.. between the tackles bull type running that lacks any type of NFL breakaway speed.
In other words.. heck of a college player.. but may become a role type player / special teamer in the NFL.. but not anywhere near a franchise back in today's game.
Throw back type of player whom is playing in the incorrect era.
"The oranges are dry; the apples are mealy; and the papayas... I don't know what's going on with the papayas!"