Blake W. Krueger, chief executive and president of Wolverine World Wide, will add the title of chairman, effective next Jan. 1. The current chairman, Tim J. O’Donovan, will remain on the board of directors. Krueger has spent nearly 40 years in the footwear industry and has been an executive of Wolverine for more than 16 years. Krueger took over the post of president and CEO from O’Donovan in May 2007 at the age of 53 years. Like Krueger in his new roles, O’Donovan acted until then as chairman, president and CEO.