I swear Cena's not as hard a worker as he was back then. The fuck is he working for now? Fighting Big Show and "selling" injuries that just magically disappear after the most brutal beatdown of the entire feud when he could barely walk to the ring to make it to that brutal beatdown?
Cena's not working anywhere near as hard as he was before. It's even evident in his promos. Granted he cut one which I said was pretty good this week against The Miz, but you can credit some of that to the fact that he sorta shut Miz up, and Miz recently has been the greatest thing the WWE has on a microphone.
And there's suggestions Taker might stick around to fight a 20th Mania match, which, by that time, DiBiase could be ready for (since you believe he's just unproven, which I'll give you). If DiBiase does prove himself by that time, why not give it to him? Why give it to Cena, who you can't replace as a face (and that will kill any face value he's got). Don't give it to Orton, he failed already. If anyone was going to fail and then break it, Kane should have been that Superstar. But we won't see that.
3 year's time, DiBiase could be that guy.