A senior member of the board which meets on Tuesday to discuss the future of domestic cricket has said that the idea - in which 18 county sides would be replaced by nine franchises , who would take part in a 57-match Twenty20 tournament over 25 days from 2010 onwards - was " manifest nonsense " and that David Stewart , the Surrey chairman and co-author with Keith Bradshaw , chief executive of MCC , faced a conflict of interests .