Paolo Di Canio has defended his record as Sunderland manager and furiously denied accusations from Martin O'Neill that he was a "charlatan".Sunderland made 14 new signings during the summer, but Di Canio insisted director of football Roberto De Fanti and chief scout Valentino Angeloni were responsible for all transfer business and claimed he would have wanted more British players. "I think 80 per cent of the squad should be British footballers," he said. "I don't know why more didn't come, you would have to ask Roberto De Fanti and Valentino. "They were given power by the chairman. I gave them my opinion, I gave them names, but not one came and I don't know why. The players that did come, I accepted, but obviously they weren't my first choices."