UEFA has announced a list of 10 coaches believed to be best ever since UEFA's foundation in 1954.
The European football governing body called these men "ten of the many coaches who had made a major impact on football" since 1954.
The list is made up of icons like Johann Cruff and Sir Alex Ferguson but missing is manchester City's Pep Guardiola who has been the most successful coach in world football in the past seven years.
Other missing icons are Carlo Ancelotti, Rafa Benitez, Arsene Wenger and Ottmar Hitzfeld.
Here are the list of coaches profiled by UEFA:
Brian Clough: football's ultimate iconoclast
Johann Cruyff: the man who reinvented Barcelona
Vicente del Bosque: Madrid and Spain's soft power
Sir Alex Ferguson: United's master tactician
Helenio Herrera: the king of catenaccio
Udo Lattek: Bayern's 1970s kingpin
Valeri Lobanovskiy: the soccer scientist
Rinus Michels: the architecht of 'total football'
José Mourinho: the 'Special One'
Arrigo Sacchi: master of the Italian renaissance