Reviewing the press images, I have a few questions.

1. The challenge is explained per Jiffy at the start. They can see it laid out in front of them. Why would the Brains choose Liz and Debbie and not use Joe? Joe, as a 72 year old guy is extremely buff. Men, traditionally have more upper body strength than women. Joe looks like he works out with weights. Joe must NOT have wanted to do this challenge, or could he have been feeling badly, earlier? Is there a reason that Joe is not doing this challenge?

2. Clearly, the Brains get through the first part of hauling the rice bags in last. This is not a good sign for them....

Lis should have flown through that balance beam first as apparently Julia and Alecia did. Looks like Liz had trouble and most likely fell off, now they are all waiting for her to cross, the one with no weight to bare.

Liz could be the weak point in the challenge. BUT, did she step up because Joe didn't?