Goff IS injured. No matter what Goff, McVay or the Media / fans have to say, he did not start last week only because his thumb was not right. I bet it is no better than last Saturday and probably worse. It's a matter of Biology. His thumb is FAR from healed. Goff with a bum thumb in frigid conditions can NOT be a good thing. McVay knows that if Goff goes out there and fumbles a time or two, it won't be Goff taking the heat.
With that said.....Goff has one more year to get back in a groove or he will be gone. I'm sure the Rams will upgrade with a speedster WR and O line help / depth. Goff will be given the help he needs. The rest is up to him.