Schlereth on Mike and Mike suggested Roman/Smith to Arizona. Maybe Kansas City was more like it? Nah, just a thought. I want Roman to stay and don't think Roman would keep Smith per se. Smith would have to think he was a stopgap again, even if he was doing well for himself, but to start with someone familiar, he might still do it. He could actually compete against Manning.
I think that anywhere Smith goes, he's likely to be a stopgap. He is at the point in his career where his starting years are numbered but he isn't quite yet a full time back up. I don't see any team investing long term in him as a starter.
BTW I REALLY hope Roman doesn't go anywhere.