It isn't a recruiting problem, "recruiting" being defined as beating other Pac-12 teams for prized recruits. The Zimmer speed defense concept, like the "air raid" for offense, assumes you aren't going to win many recruiting battles. But you must sign the right type of player. On offense, Leach knows exactly what he wants, and those "overlooked" under recruited kids fits the "air raid" template. On defense we have greatly improved our team speed (at the expense of size). However, there is another aspect to the prefect speed D player we have missed the boat on. What made the Steve Gleason's Chris Hayes', Ron Child's, Tory Hunter's, Jason David's, John Rushing's et al and our other mighty mites, far better at playing speed D?
It is a nose for the football, a high football IQ. The perfect speed defense player is not only fast, he stays in position to utilize his speed. The future perfect speed D player, is the fast undersized kids, who is also in on every play of game film. He is the "who is that kid" kid. Speed without the nose for the ball just makes you a Keystone cop on the field, and we have too many of those. If you play speed D well, your lack of size must replaced by numbers on the ball. You can't get numbers on the ball unless you have the football minds as well.