If Sanders doesn't win any states outside of Vermont and Massachusetts, start polishing the crown. The coronation is underway for Clinton. Even if he comes close in the other states, but fails to win, it's effectively over.
The perception will be that Sanders can't win a state, his message doesn't resonate, and he can't win a general election.
But what happens if Sanders pulls off an upset and wins a majority of the Super Tuesday states, not counting Vermont and Massachusetts? If this happens, we have a contest on the Democratic side.
Of course, come Wednesday morning, the Clinton team will still have the messaging advantage.
Even if Sanders manages to win Texas with 252 delegates and a few other states along the way, the Clinton PR team will still own the spin room on Wednesday morning when they point to the 712 superdelegates that Clinton has already lined up.
Unfortunately for Sanders, that's a reality and no amount of spin will change that message.