To limit it to three, I'd go with OG, DT and S. I think we can solve the OG problem, though, if we move Collins to LG and start Steele at RT. We might also have an on-roster solution at LB with Cox, although we still need one more for when we play 4-3 fronts. We don't have a solution at DT and FS IMO. Not sure if Farniok at C can be a solution, either, but I do think he'll be the only other option besides Biadasz.