I retweeted this article a few days ago, but I think it is worth it to share on the blog as well.
The article follows the stages of a college football coach who changed the training methods fundamentally. It was always important for the athletes to lift weights & build muscles. I think a long time the vaulting training looked the same. But over the years it changed a lot. For example are yoga & ballet now important parts of the training. If anyone has doubts about that fact, read this article about a football team which trains their balance & flexibility instead of strength. And are very successful with it.