Until the mid 2000s the Premier League was dominated by two managers – Arsène Wenger and Sir Alex Ferguson – who collectively won 11 of 12 titles. But their managing styles couldn’t have been more different. Wenger would stay silent for the majority of the half time break, believing that players needed to calm down before they could think and communicate clearly. Meanwhile Ferguson was synonymous with the ‘hairdryer treatment’ – screaming at players, and in one instance kicking a boot at David Beckham’s head.