I appreciate the technical explanations of certain defensive strategies in your clips, but they feel generic in that your could be talking on how to defend any offensive pass play from any team.
What would separate you part would be going into detail on specific routes Manning likes to run such as the Levels concept or routes that rub the CBs. Going into more detail such as Jackson versus Bailey and how have they've preformed against one another in previous games... Which routes did Jackson beat Bailey on when he was a Charger.
You are marketing yourself to fans on forums who will know more details about their specific team than the average bronco follower so having incorrect formations on a white board will appear painfully obvious.