Sir Martin Grills Twitter’s Jack Dorsey on Stagnant Growth, Potential for Marketers

WPP CEO Martin Sorrell challenged Jack Dorsey, Twitter founder and CEO, with some tough questions when the two men appeared together on stage at Dmexco today.

Just setting up my twittr with @Jack #ADealsADeal

Martin Sorrell (@martinsorrell) September 13, 2017

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