My high school was no football powerhouse, we were decent for northeast school. But we were really lucky to get a new strength and conditioning coach in the mid 90s who was light years ahead of his time for a northeast high school strength coach. We were one of the few schools in the area who even had a real strength coach. We were doing dots, bounding over hurdles and all kinds of plyos and explosive lifting back then. And it just keeps evolving. The guy was just put in my schools hall of fame last year when he retired. He was a savage and like a second father to me and a lot of kids. I teared up a bit at his hall of fame speech.
I wouldn't have played after high school if it wasn't for him. I was scrawny and a step slow as a freshman, but his program turned me into an athlete.
Great story. When I left graduate school, I coached high school football at a Houston-area football powerhouse. I started all of the same stuff. We even went to the stadium built next door and had athletes doing squat jumps with a med ball up the steps. Later on down the line I started. cutting out most all of the off-season footwork drills after I talked to the strength coach at LSU. He said they had cut all of this stuff too, because drills must be very position specific, or they have no transfer value. At his advice, we even cut running times 40's. I was doing HIIT training during the offseason. Position coaches took over running position-specific footwork drills, and believe it or not, our 40 times got faster. Mostly, I think, because I instituted Conjugate training, where we work very heavily on the hip complex. We went for doing periodized training to training heavy year round even during the season. Our guys were now bigger, much stronger, faster and much more explosive. I wrote an article about this in a coaching magazine, and I had emails coming from most every big program in the USA, including some pros.