A BusinessWeek post says that James McNerney's introduction of Six Sigma at 3M experienced the effect of stifling creative imagination and reviews its elimination with the research perform. It cites two Wharton College professors who mention that Six Sigma brings about incremental innovation on the expenditure of blue skies analysis. https://collindrflu.blogdon.net/5-easy-facts-about-can-someone-do-my-six-sigma-certification-described-44290914