I wish to underscore again that the concepts in the final framework are not my “opinions.” While I cannot extract my own psychology and biases entirely from the research, each finding in the final framework met a rigorous standard before the research team would deem it significant. Every primary concept in the final framework showed up as a change variable in 100 percent of the good-to-great companies and in less than 30 percent of the comparison companies during the pivotal years. Any insight that failed this test did not make it into the book as a chapter-level concept.
