Why move Jake Ryan? We know he's a good SAM, and even if Black or Roh move, we still have the other, plus Clark and Ojemudia at WDE. Assuming Roh moves, I'd much rather start Black who has a lot of PT over a converted LB, especially since Ryan would have to pack on a lot of weight to not be undersized at DE.
My take: move Roh to SDE (backed up by Brink, Heintzman and frosh), rotate BWC, Q, Ash and Pipkins at the two tackle spots (we should be able to get two starters out of that group) and start Black at WDE backed up by Frank Clark. Redshirt Ojemudia.
Don't sleep on Heintzman. He might need another year, but I think he'll be good. Rock or Wilkins could get in the mix on the inside and I think Stroebel is the frosh DL who is most likely to get early PT.