Sorrell Troubled By Transparency Debate; Mayer's Mobile Confidence
Here’s today’s AdExchanger.com news round-up… Want it by email? Sign-up here. Sorrell ‘Puzzled’ By Media Margin Pushback Speaking at ad:tech London, WPP CEO Sir Martin Sorrell said he’s troubled by the debate around transparency and programmatic. Regarding his position on the media sold through WPP’s programmatic arm, Xaxis, Sorrel said, “We decided to do this […]