WPP is slogging along with the rest of the agency market. Q1 like-for-like revenues were down 3.8% to $3.5 billion, the company said Wednesday. In North America, WPP’s largest market, like-for-like revenue was down 1.9% to roughly $1.2 billion. Grey, GroupM and VMLY&R all grew in the region, but revenues began to sag across the… Continue reading »