Total football is the purest form of attacking football.

Cruyff was at the heart of the Holland team that earned a reputation of playing Total Football in the 1970s, and the pioneer of the style that earned the Dutch the reputation of being a joy to watch.

Especially when the idea of "all-out attack and defense" becomes the guiding ideology of volleyball, the research of Observational Capability is one of the most important tasks of volleyball workers.