I'm willing to admit he might be damaged goods at this point. Maybe he's already been hit too many times, and injuries have taken their toll, but I still don't think it would be that detrimental to sign him off the street for cheap when he eventually gets cut. There's very little downside. If it doesn't work out, he gets cut again. I actually think Adam Gase's offense is a good fit with his skill set.
I think his biggest issue is trying to get away from what made him special in the first place, which was the read option. Perhaps he would reconsider when he finds himself looking for a job as a free agent. It could be his last chance to stick on an NFL roster, sadly.