I can see your skepticism. After following the Bills since 1965, I can see through the BS. The back injury played into the poor performance of the right side. Calling it a fiasco is hyperbole. The team won 13 games with this line.
Draft will garner a O lineman. There are several players who can play both OT and OG. With the two OG signed in FA, I suspect they will draft a back up to push the starters. This keeps evolving.