I can't find any definite online source to post here, but it has been confirmed. Ross will be working with the running backs this spring. Sam Webb talked a little bit about it today. Ross is listed as 5'10" and 176 pounds on the official roster. I would assume he will be a change of pace back/possible 3rd down back.
Edit: Magnus has a tweet up about it.
Ed-Ace: This originally came from a board post by 247's Steve Lorenz ($):
This one was not reported, but we've been given some great information that redshirt freshman cornerback Ross Douglas will be moved to running back this season. He played the spot on the scout team last season and we're told he was excellent. Remains to be seen whether he'll be in the mix for carries or what.