 Complete the following phrase:  Total Football, which was invented by Dutch manager Rinus Michels in the 1970s, exposed the weaknesses of the Catenaccio system. Unlike previous systems, in Total Football, no outfield player is fixed in their nominal role; anyone can assume in the field the duties of an attacker, a midfielder or a defender, depending on the play. Due to players often switching positions with one another, man-marking strategies, such as catenaccio, were no longer effective at coping with this fluid system. Despite previously losing out 41 to Milan in the 