
In an industry built on creativity, it’s a testament to both his longevity and ingenuity as a shrewd businessman and negotiator that Martin Sorrell, the former chief executive of WPP, has become synonymous with advertising. And while much has changed over the three decades since Sorrell turned a wire shopping-basket company into an advertising behemoth, after a little more than a year into his new stint as executive chairman of S4 Capital, he’s proving that you can indeed teach an old dog new tricks.