BBC Sport traces the history of one of the toughest jobs in sport - the England football manager. Using rare archive and new interviews with current manager Gareth Southgate and former England managers Sven-Goran Eriksson, Fabio Capello, Roy Hodgson and Sam Allardyce, we hear first-hand the personal toll the so-called impossible job has taken on some of the game's most successful club managers. With contributions from former England captains Gary Lineker, Alan Shearer and Rio Ferdinand, along with key decision makers from within football, we take a closer look at what it will take to end England's years of hurt.