>* 2 Safeties If you've figured out there are two safeties then this implies that the defense is looking to take away big passing plays but give up the middle o

>* 2 Safeties If you've figured out there are two safeties then this implies that the defense is looking to take away big passing plays but give up the middle of the field. 2 safeties is pretty standard and is just as much a run stopping defense. For example the corners in man on the exterior with the safeties in man on the interior is a run stopping defense. Backers often cover the apex or a safety roles to the center taking away the middle. Nice overal explanation but the strategy in football is to "show" one thing and do another which is why a pre-snap read only goes so far.