Imagine, if you can, the world of business–without corporate strategy. Remarkably, fifty years ago that’s the way it was. Businesses made plans, certainly, but without understanding the underlying dynamics of competition, costs, and customers. It was like trying to design a large-scale engineering project without knowing the laws of physics. But in the 1960s, four mavericks and their posses instigated a profound shift in thinking that turbocharged business as never before, with implications far beyond what even they imagined.