Suggested this is possible elsewhere and will again here. I know it's a crappy thing for the Rams to do when Stafford just signed a favorable contract to allow the team to stack things around him. But he is old and age is undefeated. And he has had elbow/arm issues and questions arise, as well as some poor play this season that was probably related to those issues.
So is this a real possibility? I think so. Note that I am not suggesting this is a likely scenario. Rather just suggesting it is something the Rams are almost surely discussing in-house. They have to be. Because Mayfield is younger and free of injury concerns and will be gone in FA once he catches wind of the contract offer projections he's looking at if he plays the last two games anything like he has the first three.
I have to think the interest in Stafford would be significant. Also I have to think the Rams would agree to move him to the team of his choice. They owe him that. But there would undoubtedly be some options for him to choose from.