In this article, a Scrum Master gives the history of the word Scrum, and uses this history as a vehicle for better understand the Scrum development method.
These management practices are not the core of Takeuchi and Nonaka’s development system. That core was named ‘Scrum’ by the authors. Lean management practices should simply be complementary to it. There can’t be ‘Lean’ if the heart of it, Scrum (as named by the authors) , is overlooked, which, in general, is the case. The authors, therefore, prefer to stress the need for the heart and soul of the system to be Scrum and take away the sole focus on the surrounding management practices. They never talk of Lean, but always speak about Scrum.