““Each player must be convinced that what he does is the best thing for him, for his team-mates and for the general idea. The goal is to pass the “ABC” of football on to each player. For example, you are an inside player, you must do this and not that, and nothing more. Once you learn what an inside player must do, you can then think of variations. And when it doesn’t work, you must go back to the “ABC”. The main thing is to have rules. You can only ask a player to do something that he knows and nothing more.””