Creative chairman of Grey Global leaves agency 8 Jul 20228 Jul 2022 WhatsappWhatsappPrintPDFXLinked-in Facebook More sharing options More sharing options John Patroulis, who was Grey Group's global creative chairman for the past seven months as well as CCO, has left the organisation. Recent information from the agency indicates Patroulis will not be returning from a leave of absence he took in April.