Titan, the answer is no. Here's the short version of why:
Your question can be re-stated this way:
can we clinch the East even with a loss to Vandy? Because that's the game we won't have played by the 19th of November. Whatever scenario we come up with has to include the possibility of that being a loss.
If we lose to Vandy, but win Kentucky and Mizzou, we'll end the season 4-4 in the SEC. That means the teams we beat in this scenario (FL, UGa, Ky, Mizzou) have to end the season 4-4 or worse. The teams that beat us in the scenario (USCe and Vandy) have to end the season 3-5 or worse.
But here's the problem:
- FL would have to lose both their remaining SEC games to be at 4-4. That includes USCe.
- USCe would have to lose to FL next weekend, to get them down to 3-5.
See the conflict? Florida can't lose to USCe, AND USCe lose to Florida. But both are requirements of this scenario.
So bottom line is, we have to win out for a shot at the East.
The good news is, if we DO win out, the only other requirement is that FL lose one more game, whether to USCe or to LSU. Everything else falls in place with us winning out.