Backup: Kyle Orton

Best-case Scenario: Romo's inevitable late-season meltdown occurs at the end of January-or even on February 2 in MetLife Stadium. You already know a "Romo" is coming, it's just a matter of when.
Worst-case Scenario: In his seventh season as a full-time starter, Romo seals his fate as the dude that racks up big numbers but can't win big games. But hey, bright side for Cowboys fans: He may finally get Jason Garrett shit-canned.