Rivals has a non-paywalled article (Link: http://michigan.rivals.com/content.asp?CID=1316740) asking and analyzing whether Michigan should move Ryan. He was at SAM linebacker this year, but could potentially have a position move to play weakside defensive end in the upcoming season.
As is typical with a Rivals or Scout teaser headline, the answer is "no." Their reasoning? First, it is questionable whether Jake Ryan's frame can sustain the additional weight needed. Second, and probably most important, between Roh, Jibreel Black, and Frank Clark, Michigan already has solid candidates at both SDE and WDE. Keeping Ryan as a SAM LB allows Mattison to put more of his best players on the field at one time.
This analysis makes sense to me. However, it makes me wonder whether we should expect any position changes in the coming year. I suppose to really answer that, we'll have to see how the incoming class performs, and which guys are truly strong enough and good enough to compete for PT right out of the gate. While there has been lots of love expressed for both Bolden and Pipkins, it is definitely too soon to slot them in as starters. Exhibit A is Ryan. As good as he was in this last campaign, Ryan was undoubtedly helped by a redshirt year. I'm sure that Mattison will get guys on the field right away if their practice time warrants it. He already did with Countess. When others perform the same way, position changes will become more obvious.