Defense is not hard to recruit.
What is hard to recruit is a defender that can also play offense. Don't get so caught up on how the kid plays defense. I can go out and grab a D2 kid that has zero effect on offense but can shut another kid down. Doesn't mean jack squat.
Well, a good example of that was Omersa. Athletic kid who played hard on the defensive end but had little in the way of offensive skills (other than being able to leap and dunk).