Ed reed, Ronnie Lott, John lynch, Sean Taylor, Brian Dawkins, just to name a few was play making safeties, not old but awesome. Safety is the most important position on defense. Every position have their own weight but safety is your last line of defense. The best front seven in the world can't stop 9 routes and deep post with a 3 step drop and launch. If a corner get burned, slips, etc the game lays in the hands of the safety. Saying old man is very disrespectful to that position.