Since taking over in 2006 from the outsider Knight first recruited for the job, Parker has overseen a more than doubling of Nike’s sales. To outward appearances, Knight and Parker are a study in contrasts. Knight is an MBA and still an irascible presence around Nike’s Beaverton, Ore., corporate campus. Parker is a soft-spoken shoe designer, known for a thoughtful if demanding management style. ... Parker was one of Nike’s earliest recruits—he joined a design outpost in New Hampshire in 1979—and has succeeded at every task assigned to him since. ... Parker’s meticulous approach to product development, known as “design thinking,” is all the rage, thanks to the acclaim of Apple’s products under its famed designer Jony Ive. Parker remains committed to his original craft: He still noodles on two limited-run sneaker lines with famed Nike designer Tinker Hatfield, one of them with Nike spokes-icon Michael Jordan and the other with Japanese stylemaker Hiroshi Fujiwara. ... Parker equates his managerial style with being an editor, with his process focused on helping subordinates hone their ideas. He even edits himself.