“Never argue with an idiot. They will only bring you down to their level and beat you with experience.” MB Rule # 1
Let's keep it simple and real. He will coach as long as JR and ownership believe he has the goods to win a championship. At his age, where people can start to slip, that could be as little as one year or as many as a few. It is a year to year decision and while he can choose to leave, it is his bosses decision on whether he continues to have an offer to stay.
No one remembers who came in second.