I would like Ajax to be people's favourite second team. Like in Spain, if you are a Real Madrid fan, then you can't be a Barcelona supporter. It's the same in Italy. But you can be an Ajax fan.
If you play for Barcelona or Ajax or for any top team or top side, they want to see the top players excel every week.
It was a difficult decision to say no twice to Barcelona. It was never a secret that I have admired them since I was a kid and that I always wished I could play for Barcelona. But life is made of hard decisions that sometimes go against what you dream of.
I played for Barcelona, for Ajax, where it's important to develop and integrate young talent.
Having coached Ajax, Barcelona, the Netherlands, FC Bayern, and Manchester United like I did, it is difficult for any offer to be interesting.
Barcelona, Real Madrid, City - there are many teams you'd want to play against.
When you play against Barcelona and other great teams in the world, you can lose. It happens.
Did you used to play for Barcelona? Because that's not Barcelona football.
It doesn't matter who we play against, whether it is Barcelona or another big team: when you are Man United, you do not have an excuse. You have to win.
You want to play in the best stadiums against the best players - your Real Madrid's and Barcelona's - you want to play those teams.
When I was 18, I moved across the ocean just for the opportunity to play for a club that played against Barcelona. So to have the honour of playing for Barca? It was incredible.
I've always been a big Ajax fan. It is not very strange - my whole family supports Ajax.
I always found it a great challenge playing against Michael Jordan, to play against Magic Johnson, to play against Larry Bird, to play against all those good players because it's something that you can take away from it.
Ajax have a set model, a defined youth programme - Barcelona have one too, and Juventus. And Atletico Madrid do too. Real Madrid don't - because they alternate developing their own players with signing talent.
The entire world knows what I have with Barcelona and what Barcelona have with Ronald Koeman, so if I could become Barcelona coach one day, I would be delighted.
I am not happy to play for Barcelona, but Barcelona should be happy that I play there.