J. Walter Thompson Chief Resigns After Suit Accuses Him of Bias Gustavo Martinez was accused in a lawsuit filed by the ad agency’s chief communications officer of subjecting employees to racist and sexist behavior.Read more http://www.nytimes.com/2016/03/18/business/media/gustavo-martinez-ceo-j-walter-thompson-wpp-advertising-agency-resigns.html?partner=rssnyt&emc=rss