He raises a question of Spain's overnight success and dominance in so many sports. This is the hard question to answer because the point seems valid at first glance.
actually it doesn't. at all. it's been a progress over a certain amount of time, ranging from the early 90s leading up to the current domination. the only thing spain did was tapping into its vast human recources as a country with a huge affinity towards sports and combine it with up-to-date concepts how to develop infrastructure and training grounds. add the that a nearly perfect climate for outdoor activities and off you go. it was out in the open, literally. no secrets whatsoever, no "overnight" success.