Paid to have their finger on the consumer's pulse, the Mad Men of advertising are under mounting pressure from clients to adapt to a fast-changing digital age where simply shifting marketing dollars online from old media no longer cuts it as a strategy.
Talk at the global industry's annual gathering in Cannes was dominated by complaints that owners of ad agencies, including the biggest WPP, are no longer set up to help brands reach consumers in an online world of mass but fragmented content.
