okay an audible is a bailout play kinda, not people. lol so if you come out in a play and see the defense is in a certain D and you have a play that will exploit that D you can change the play to that play, you can set your audibles in the settings gamplan section of the game then when your in the game simply press square for ps3 and i think x for 360 then the icon with the play you want to audible to, there are also right stick audibles built into the plays this year so if your in a pass formation and he comes out in a 3 man line you can audble to a run by simply pressing again square for ps3 and x i think for 360 and down on the right stick or whatever you want, the right stick audbles are always down= run, right=deep pass, left=play action, up=quick pass, so just go into practice mode and mess with the audibles and find out what each formations audibles are. lol hope this helps man. lol