I guess that audible is one to fool the D he is changing the play or to relax him a little if he reads it? "8" or "8 Omaha, 8 red dog"!!!
Wish they had a #1 Throw the ball to #9 a lot. (You know the real tall guy that can jump high and catches the ball really well)
I guess it was meant to be caught on camera and was a nod to the fake play script of Mike Leach that came out in story earlier this year.