Leeds manager Marcelo Bielsa has admitted that he has spied on all of his sides opponents this season. One of Bielsa's staff was recently caught observing Derby County prior to their match in the Championship. 'So why did I send someone to watch them?' said Bielsa. 'I wasn't violating the norm.' The Argentinian also gave a lengthy PowerPoint presentation to a room packed with journalists outlining the extensive analysis he does on each opponent