Yet a tremendous amount of those players don't become teachers and/or coaches so just how effective something like that would be is debatable. The bigger effect, and why it is so hard to pull players from the South is much more simpler. They grow up watching these teams play, they attend games, they see it, read it, smell it, 24/7. Plus they attend the camps, meet current players and coaches, and they are likely generational fans within their families. And while we sometimes laugh at weather, it is a huge factor as well. Distance from home... on and on.
As far as getting in to a HS in Bama to recruit a kid, that is becoming more and more available to coaches outside the state. HS coaches, and I know several of them, will do as much as they can to assist their players in getting college scholarships. Even if it means that a team outside the South is interested. It is just so much harder for a Harbaugh or a Kelly to walk in to Hoover or Prattville and convince a kid to play for them over Bama/Auburn/ Fla/Ga, etc. Harbaugh has made some ground with his camp last season, but until he pulls the five stars instead of the three stars I just don't see it changing that much.