Yep. People don't see this, but there is no two ways about it. Our cap situation next year is worse if we get rid of Goff - no matter how we do it - than if we keep him. If our cap situation is worse, it makes it all that much harder to fix the OL.
Simply put, our best bet this year is to do what we can to fix the OL. If we successfully fix it and Goff stays the same or regresses further, we can move on without nearly as much in cap hit and we at least have addressed that issue and will set up whoever the next QB is for success. If Goff's play improves with that of a fixed OL, then we don't need to move on.
And if the OL isn't fixed? Well, we'll have to evaluate Goff in that context. I think the biggest thing is for him to reduce unforced turnovers, which seems to be the biggest knock on his play this year.