 Perhaps his most revolutionary idea was that every player should be able to play in all positions; previously, each player in a team was assigned a specific position or role, usually marking a specific opposition player.The Hungarian tactic of players constantly changing roles and positions contributed greatly to the success of the team – however, it could only be introduced by using a core set of talented players who were used to playing together at both a club and national level for a period of time.It would be nearly 20 years before the Dutch national team of the 1970s utilised the same approach with their concept of Total Football.