I am a coach who thinks always in the long term.

A system depends on the players you have. I played 4-3-3 with Ajax, 2-3-2-3 with Barcelona and a 4-4-2 with AZ. I'm flexible. The philosophy stays the same though. I don't think that you can adapt it to every possible situation. You need the right mindset, and it depends on how the players see the coach and vice versa. The coach is the focal point of the team but you need to have an open mind, and so do all the players. Everyone needs to work together to achieve a common goal.

I'm not the kind of coach who just goes out and buys players for the sake of it. I'm a coach who wants to - and can - improve players.

When I think I've made an error, it can cause me a sleepless night. But that only happens rarely.

Louis van Gaal has nothing more to learn.

Running is for animals. You need a brain and a ball for football.

I've signed a contract with the Dutch national team until 2006. So I can win the World Cup not once but twice.