Both slideshows on both respective countries when it comes to how they train players in youth development

http://www.slideshare.net/PedMenCoach/belgium-youth-development

http://www.slideshare.net/PedMenCoach/german-football-association-talent-development?related=1

Had a good look at the Belgium one.

Wouldn't fancy playing on those muddy pitches.

Some interesting stuff in there about maturation.

Also, the way they explain moving from a game of 5v5, with one diamond, to a game of 8v8, with two diamonds is noteworthy.

They use the 1-4-3-3 as the prescribed development formation, the same as us.