Holtzbrinck announced Thursday morning that longtime ceo of Macmillan John Sargent will leave the company on January 1 “as a result of disagreements regarding the direction of Macmillan.” President of Macmillan US Trade Don Weisberg will take over in 2021 as ceo of Macmillan’s English-language trade publishers, and general manager of Macmillan Learning Susan Winslow […]