A BusinessWeek posting states that James McNerney's introduction of 6 Sigma at 3M experienced the impact of stifling creative imagination and reports its removal in the exploration purpose. It cites two Wharton College professors who mention that Six Sigma results in incremental innovation in the cost of blue skies investigation. https://take-my-six-sigma-course78814.bcbloggers.com/27746406/online-six-sigma-course-help-an-overview