The company also announced that Brian McAndrews, the former CEO of Aquantive and a Microsoft advertising executive considered to be the leading internal candidate for the online job, would be leaving Microsoft. McAndrews will spend the next few months consulting Ballmer and Lu before departing.
Lu, who worked at Yahoo for about a decade, was one of several executives who left the struggling Internet company earlier this year. At the time, he was vice-president of engineering, overseeing the company's search and e-commerce efforts. Prior to Yahoo, he was a researcher at IBM's Almaden Research Center.