The evidence
• Followed up a glittering playing career by capturing two Dutch Cups and the 1986/87 European Cup Winners’ Cup with Ajax in his first coaching post.
• Remains the only Liga manager to win four successive titles, as Barcelona utterly dominated the Liga from 1990/91 to 1993/94.
• Led Barcelona to their first European Cup success in 1991/92, setting the template for future triumphs under Frank Rijkaard, Josep Guardiola and Luis Enrique
The expert testimony
“Johan Cruyff painted the chapel; Barcelona coaches since merely restore or improve it. He h…