Like, are the coaches not watching the same plays? Are they not watching the game? What ARE they watching? Because I saw it ... and the announcers saw it. This isn't something you can hide.
But to answer your irrelevant question, I have played and coached other sports, but I have not coached football, but I was a professional sports reporter for 5 years and on the sidelines each weekend with the coaches watching the games. Often standing right behind the coaches on the sideline.