FWIW— I have heard Nate Newton on the podcast talk about how changing positions along the OL is more difficult and nuanced than would appear at first.
Believe it was back when they moved McG to LG and were also talking about Collins potentially going back to LG from RT and Nate was basically saying they should just let the guy learn one position and keep him there… Personally I don’t know much about the intricacies of all that would be involved— but I respect Nate’s opinion as someone who knows what he’s talking about