The review has been instigated by Betfair’s newly appointed chief marketing officer Johnny Devitt, who was promoted from director of online marketing earlier this month following the departure of marketer, Mark Ody. Devitt joined the company in 2013 from high street rival Paddy Power. Havas Media Group’s Arena, which has handled Betfair’s media business for two years, is not believed to be interested in repitching for the account.