People jumped to conclusion that Jody and Skiers were in the front because of the info that there were only two teams with females left and they were ahead of the pack. Now we know it's not true, Lifeguards and Debaters are still in it as well. From the available photos i don't see any proof that Jody are in front.
I think, most plausible scenario:
- Skiers show up to U-Turn first, freeze not sure what to do
- Debaters, Lifeguards, Twins catch up to them, all of them together decide not to use it
- Jody show up later, realize they are in the back of the pack and use U-Turn on Violinists to be safe