Coaching the Dutch 4 - 3 - 3 is the most comprehensive book available about the 4 - 3 - 3 formation. The 4 - 3 - 3 is the preferred formation for most of the teams in the Dutch Eredivisie. The formation is promoted and recommended by the KNVB, the Dutch National Federation, for use with all youth teams in professional academies. Many other clubs and national teams also play in a 4 - 3 - 3 formation including: Chelsea F.C. and Newcastle F.C. of the English Premier League, Barcelona and Real Madrid of La Liga in Spain as well as the national teams of Spain and Italy.