6Jim Collins, Good to Great and the Social Sectors: A Monograph to Accompany “Good to Great,” Kindle ed. (New York: HarperCollins, 2011), loc. 241-43. See also Jimcollins.com, “The Hedgehog Concept,” www.jimcollins.com/lab/hedgehog/p2.html and www.jimcollins.com/media_topics/hedgehog-concept.html#audio=79.
