Here is my best guess:
QB- Petras will replace Stanley
RB- Goodson, Sargent and Kelly-Martin are all back. IKM was able to RS last season
OL- Best guess left to right is Jackson, Banwart, Linderbaum, Schott, Kallenberger. Justin Britt played early this year as a true freshman at guard but was able to retain his RS. Those guys are probably our top 6.
DL- Waggoner, Golston and Van Valkenburg at DE with Joe Evans getting snaps in pass rush situations. Nixon will start at DT. Need a young guy to step up here. I would imagine the staff will be pursuing grad transfer options on the DL.
LB- I think the 4-2-5 is here to stay for the most part so the 2 LB spots will be figured out between Campbell, Doyle, Niemann and Colbert. There is a thought that Campbell may outgrow LB and move down to DE. Welch is a big loss here.
CB- Lose Ojemudia but have 4 other guys that have started at CB in their careers (Hankins, Moss, Johnson, Brents).
S- Lose Stone. Koerner and Meriweather will battle for the FS spot, not sure if the backup can slide over to strong safety. Otherwise hopefully the light turns on for one of the young guys (Craddieth or Castro).
P- Will be looking for options here.