http://www.ft.com/intl/cms/s/2/8c068480-3ca1-11e3-86ef-00144feab7de.html#axzz2ifxrkCuZ
Perhaps managerial greatness always arises from an unrepeatable combination of person, place, moment and luck, and therefore cannot be taught by a book. Other managers can’t simply decide to be like Ferguson. Despite that lecture about control, Blair lacked the power to discard Brown as Ferguson had Beckham. If it were possible to copy Ferguson’s management secrets, everyone would have done so long ago.