“Bob quickly emerged as the candidate who would bring a powerful new perspective to our business,” says Christopher Coughlin, D&B’s current lead director, in a statement. “His track record of strategic leadership and innovation, combined with his ability to leverage a company’s core strengths and assets, uniquely position him to begin a new chapter in D&B’s history.”Replacing Carrigan will be IDG Enterprise CEO Michael Friedenberg, who will become CEO of IDG Communications U.S. David Hill, CEO of IDG International Publishing Services, will become president, overseeing international aspects of the media operation, among other responsibilities. Revenue at D&B was up one percent in the second quarter to $386.4 million, but flat for the first half at $767.4 million when compared to the same periods last year. Dun & Bradstreet Corp., the business data and marketing and risk management services provider, has selected Bob Carrigan as its new president, CEO and director. The appointment comes a month after Carrigan announced he was stepping down as CEO of IDG Communications Worldwide.Carrigan starts at D&B on October 7. He’ll be replacing Sara Mathew, who will be retiring from her position as the company’s chairman and CEO. Carrigan’s post at IDG Communications officially ends on September 30, at which point he’ll join the company’s board of directors.