If I'm Heupel, I make everyone on the roster do cold plunges every day for the next 3 weeks. The team who handles cold weather the best in the first round will win the game, and if we have to travel to Columbus, Ohio or South Bend, Indiana - we will be at a disadvantage because their players have had more time to adjust to a colder climate.
The best example of how cold weather affects outcomes is that the Miami Dolphins are 0-8 in games where the temperature is 45 degrees or lower with Tua Tagovailoa at quarterback.