“Phyllis Grann, who oversaw a virtual assembly line of blockbuster books as chief executive of Penguin Putnam but later lasted just six months as the vice chairwoman of Random House Inc., is returning to Random House in a new capacity.” Grann had told acquaintances that her time at Random House was “deeply unsatisfying,” due largely to the lack of real responsibility that came with the job because of the autonomy enjoyed by Random House’s various imprints. “In her new role, as a senior editor of the Doubleday Broadway Publishing Group, Ms. Grann is expected to acquire and edit as many as 10 books a year, both fiction and nonfiction.”