CEO of Houghton Mifflin Harcourt Tony Lucki, 60, is retiring on April 15 according to an internal memo reported by the WSJ. Barry O’Callaghan, the 39-year-old genius who built the parent company with a mountain of over $7 billion debt will make himself ceo, while still running Education Media & Publishing Group. Lucki will keep his title as nonexecutive chairman of the publisher, and O’Callaghan says “he’s going to continue to be my publishing mentor.” “Our biggest challenge is the U.S. economy,” O’Callaghan tells the Journal. “Our biggest customers are the states of Florida and California, and we all know […]