It's probably never been tougher to be an ex-professional footballer. It's hard to imagine how former football players must feel watching the game, knowing that even mundane EPL players are earning vast fortunes. One player to have just missed out on the 'stupid money cake' is Emile Heskey. A top flight career as a bruising forward with Leicester, Liverpool, Birmingham, Wigan and Aston Villa came to an end in 2012 (although he did enjoy a career swansong in Australia's A-League…