Manchester United's new manager is known as a 'man of details' who demands complete professionalism from everyone he works with. So who is Erik ten Hag? Patrick Gearey went to the Netherlands to discover more about him from those who have worked with him and watched his teams for many years. Why did he insist the water bottles were arranged in straight lines in training? How does his very wealthy family background affect his view of football? What does he demand from his players? And what will he do first when he arrives at United? Hear from Dutch sports journalist Marcel van der Kraan, one of ten Hag's former players Bart Vriends, and some of the Ajax fans who have watched his team every week as we delve deeper into the story of one of European football's most admired coaches.