William McKnight
General Manager, President, and Chairman
Legacy
William Lester McKnight is more responsible than any founder for creating the organizational philosophy and cultural infrastructure that made 3M's sustained innovation record possible across the twentieth century. McKnight articulated the management principles — give employees latitude to experiment, tolerate well-intentioned failures, and trust that distributed innovation will outperform central planning — that became 3M's defining competitive asset. He also institutionalized the 15 Percent Rule, which allowed employees to allocate a portion of their work time to self-directed projects and produced iconic breakthroughs including the Post-it Note. McKnight's fifty-two-year influence on 3M represents one of the longest and most consequential leadership tenures in American industrial history.