“What planet are you on?” exclaims Martin Sorrell, chief executive of WPP Group, the world's biggest ad agency holding company. He is responding to Marketing's observation that some brands still want to buy from independent agencies.
Sorrell, who pretty much invented the “team” ad agency model, has a view that centers on the world's biggest buyers of marketing. Tight-lipped on WPP global client HSBC, which has just called a review, Sorrell points to decisions this year by Johnson & Johnson and ...