Each training session is a form of communication. The drills themselves are not so important, it is more a question of what you do with them. During training sessions the players see what a coach wants. I often stop the practice games and challenge the players to think about the soccer problems they are facing. Thanks to my 11 years as a teacher, I have enough experience to know whether I need to step in or keep quiet. Naturally, I explain more to youngsters than to an experienced player of 30, who is set in many of his ways and is probably incapable of changing them.