Sir Martin Sorrell: Creativity has become more difficult and more interesting

WWP Group's chief executive discusses the impact of data on the business

NEW YORK — Speaking to Campaign US at Advertising Week, Sir Martin Sorrell, chief executive of WPP Group, discussed creativity and data.

He said that creative inspiration is no longer just the realm of the creative director and classic advertising agency. "This makes it much more difficult, but much more interesitng," he said.