I think that you might want to consider the fact that Romo is not the future of this team. His health has made him a part time player. QB play lost more games this year than the defense and it is wise to fix the problem now.
jnday, you know by now, that I'm not a burn barrel buddy or a fatalist in my views...
but your questioning Tony's longevity, is something even the Dalals Cowboys have done over the more recent period of time. They are aware that having a much less effective talent leading the team, is far from advantageous. Having their pants down won't be an issue in the present.
But on Tony, his back has been repaired and is again at a functional level now. As to his collar bone, it would take Donald Trump to make that a bad picture. It will not break again, where it will be repaired. I have a plate in my left hand right now, from time in Service.
I won't short change you for raising a question, where it may be a normal fan reaction. To this fan, although, he is quite a productive quarterback and if he and Dez Bryant are both on the field regularly, the Cowboys will be very tough to contain. To me, three seasons is reasonable.