How do you think Riley got his job? My understanding is that there was a previous dossier around 2007 that named a few names and they had to be quietly moved on.
Keith Hackett was forced out against his wishes and Riley parachuted in, which explains why Hackett often criticises Riley quite heavily. My assumption is that Rob Styles was another, as he retired very early and Steve Bennett went to the ECB so I'd guess he was another name. It was also around the time that Clattenburg got suspended, sacked then reinstated but I don't know if that was connected.