The idea that wrestling hasn't changed in the last 20-30 years at the high school level is up for debate. Weight training? Year round conditioning and training? Performance based nutrition? Not to mention the strong influence of collegiate and international techniques. Moves that come out of college or international get to the high schools so much quicker these days when you have guys like Eric Akin in the community. ALL sports change and evolve. Most old tried and true concepts will always work, but would you have seen a 4x state champ freestyle tilting to countless tech falls opponents in 1972? Used to be 30 years ago that the USA was not a major factor on the international level. Times have changed and wrestling has changed.