Ajax is a multicultural club, and we have found that many talented immigrant players quit when they reach puberty. So we wanted to tackle this problem with someone from the same background who had come through it. And that was Edgar Davids. During one of our fights, I pointed that out to him. But it had nothing to do with his skin colour.

It's disappointing to see how football, the world's No. 1 sport, is not No. 1 when it comes to development. It seems to me that a wealth of practical football knowledge is being squandered.

Football is not about suffering. It's about enjoyment. Control the ball, be friendly with it, try to attack, try to score goals. Of course defending is part of it, but you can defend in a lot of ways.

If you look at other countries, you see they have different values: defend more, pass the ball out more, winning is holy. In England, you could say that sport itself is holy. They say, 'Look, guys, it's about more than just winning.'

If you take golf, you have a teacher for the drive, a teacher for the approach play, and a teacher for the putt. That's three specialist coaches for one player. In football, one coach looks after 25 players.

The most important part are the fans, that people going home are happy. It's their time off, and you should give them something to enjoy.