According to Arkley's blog post, Tim Edmond has now been moved to running back. With Patterson out to start the year, Ohio would have Blankenship/Boykin/Edmond/Brown available at RB.
Monroe will be happy to have a Fullback type as a backfield option.
With Roback and Edmond moved from TE, that position got a lot thinner. Still we have the new guy, Anthony Talbert, plus a couple Redshirt Freshmen (Davon Henry and John Tanner), plus several true Freshmen that were recruited at TE/DE (Troy Mangen, Mason Morgan, Trent Smart).