I know I'm an Idiot an all, but riddle me this master of all football knowledge: With a 7th Round Pick (or any First Round pick for that matter), what are you guaranteed to get? A Pro Bowler? A franchise player? A guaranteed starter? What?
I don't know that answer to the question, but I DO know what I get with an Ed Reed and I'll take that anytime. You mention age, Ed's a beast and he'll be effective for a long time - as long as a Rookie? No - but I'll bet any money that Ed would produce more than said draft choice.
BTW - Both could go out with season or career injuries, so please don't go there - it's football, not badminton.