SISU to blame for people leaving Coventry City Associate Director Gary Hoffman has hit out at SISU's Onye Igwe who has always been the man with the power. Speaking about SISU to the CT, Mr Hoffman said: “The fact is that Sisu have been responsible for the investment of its client’s funds. “They have been effective owner, manager and micro manager. Their representative held the daily purse strings and Ray and his colleagues had no commercial freedom. “That’s why successful people like Nathan Kosky, Mal Brannigan left and now Ray and Brian Phillpotts are leaving.” Brian Phillpotts, the current Commercial Director is leaving the club at the end of this season.