The Beard brothers and CheeHu appear to have some hard feelings that the NFL team do not reciprocate the help that they have given to the NFL team. The NFL team missed the opportunity to help the Beard brothers at the decoding, the NFL team could have given the answer to the code to the Beard brothers prior to them leaving them behind.
The NFL team is willing to share information with the alliance when they are asked as when the boyfriend team asked DeAngelo for help on how to construct the instrument during the cello challenge, and again when the boyfriend team asked Gary for help during the turban Indian challenge and Gary provided the tip on looking at the building landmark to determine where the turbaned man should be placed. The Beard brothers are not happy that the NFL team is unaware that they should unilaterally volunteer information to the alliance.
With regards to Hung, DeAngelo did provide help to her during the rappel challenge by letting her know that she needed to look out for alphabets as she was rappelling since there were alphabets that needed to be unscrambled to get the next clue to move on. If DeAngelo had not helped Hung, she would not have known to look out for the alphabets since she was too busy freaking out the entire time she was rappelling down the building. She is lucky that DeAngelo told her to look out for the letters since it saved her from having to freak out if she had to rappel a second time.
ADDENDUM: Just to clarify, I am for team NFL. However, team NFL do not appear to be able to make it to the Finals...after they are gone, I hope team CheeHu win the Race.