By Alan Smith Gareth Farrelly was in the early stages of recovery from the aneurysm that almost killed him when the taxman turned up at his front door. The former Aston Villa and Everton midfielder owed almost £50,000 relating to a film investment scheme – and he had no idea. For Farrelly it began a journey to becoming a solicitor who has worked with UEFA and the Premier League. But it is also a cautionary tale for so many footballers who continue to get caught up in investment plots that few really understand. Gary Lineker, David Beckham, Steven Gerrard and Wayne Rooney have all been named as…