Where they play people in OTA's is meaningless. Edwards has a whole lot of issues to correct before you can say he can play LT in the NFL. He's proved nothing yet. He showed in college he needs work. So if that's true then he's not ready to play yet in the NFL.
Make no mistake that if Whitworth is out of the game, Noteboom will play LT and whoever is next man up at OG will play LG and I think that will be Evans or Demby.
There is some question coming into the NFL whether Edwards can play OG. He lacks the anchor and drive needed at OG. Bottom line is he is a project player and IMO at least 2 years. He is exceedingly raw but they took him based on future potential as a swing tackle. I say again the NFL is technique heavy and that is exactly the issue with Edwards and IMO one TC won't be enough to correct his issues. Play him too early and he could get Goff hurt. Remember Edwards only became an Olineman in 2016 as a freshman.
IMO Edwards is behind both Evans and Demby in readiness to play. Remember last two years the Rams only carried 8 oline on the active 53 and only dressed 7 on game day. If they do that again this season Edwards could make the 53 active roster but be inactive all year which would be the best thing for him.