Kevin Kelley, if you're not familiar, is a high school football coach in Arkansas who has grown notorious for an unorthodox approach to the game. Basically, he's not interested in willingly giving the ball back to his opponent, so his teams almost never punt or kick the ball deep after scores.
He's had enormous success, and he was recently profiled by HBO's Real Sports for the second time. I highly recommend this segment if you have access to it, because it's fascinating to go behind the scenes and see how Kelley puts his teams together.
For example, Kelley implements a dozen different types of onside kicks.