Tom Hayden, executive vice president and general manager, said he plans to retire from the agency at the end of this year. He had been with Campbell Mithun for 12 of his 27-year career.
"I am looking forward to having more time to teach and work with the boards I serve on," he told Adage.com.
Don Kvam, executive vice president in the agency's Minneapolis headquarters, will assume responsibility for the office, which handles accounts such as the National Pork Board, Mutual of Omaha, Rustoleum and Dairy Management Inc.
A trio of senior managers will handle the day-to-day leadership of the Chicago office and will reportto Mr. Kvam. They are Mark Williams, senior vice president and account management and development; Mary Krueger, senior vice president and media and client services; and Mike Powell, senior vice president and executive creative director.
Mr. Hayden, 52, began his career in 1977 at Publicis Groupe's Leo Burnett USA, Chicago. He also held posts with Omnicom Group's DDB Worldwide, Chicago and the now-defunct D'Arcy Masius Benton & Bowles, in Bloomfield Hills, Mich. He joined Bozell, Chicago, in 1989, and was named to his current post in 1992. Campbell Mithun acquired Bozell in 2001.