Bobby Evans is built like a OG. He's 6'4" 312 lbs with 34.75" arms, giving him excellent play radius. He's never played OG so give him this year and next OTAs and TC to learn and practice the position and I think he will be a good OG. I still think he ends up at LG with Havenstein or Brewer at RG. Chandler Brewer is also built like a OG at 6'6", 320 lbs, with 34.25" arms.
I still think Edwards will end up at RT with Noteboom at LT.
Ram 2020 o-line might look like:
LT Noteboom
LG Evans
C Allen
RG Havenstein or Corbett
RT Edwards
I think there is a wildcard in the mix next year with Chandler Brewer. This guy is big but he's got good feet. Good enough to play RT if he as to. That's why he's the perfect swing OG because unlike Demby, Brewer has played both OG and OT in college.
That's why ultimately I'm not concerned about the O-line long term. They have talent already on the team. They simply need to sort things out and see how all the pieces fit.
This season I think they need to make some serious o-line changes during the bye. Not only in the blocking scheme but in personnel. After the bye they need to make a serious run and they can't do it with a struggling right side. Even if it means leaving Edwards at LG for now, they need to move Havenstein to RG and Edwards to RT. They have Corbett and Evans to work out and see who fits best at LG.