Mike is clearly correct about Root Cause Analysis; Ishikawa had 3 types and most of us use only the Fishbone and not his others with the more powerful being the Process (Classification) C&E aka QCI USA. "8 Wastes" is correct and updated but Toyota have changed "5 Why" (aka Alan Mogenson of Work Simplification/Rudyard Kipling) to as Mike says ask why until you indeed get to the root cause. As per Mason and Dobyns who 'discovered' Dr Deming, the good Dr never showed or 'taught' the Japanese his 14 Principles - he indeed was sacked by JUSE in 1953 (see Dr Ishikawa's last book) and Dr Juran had to be brought in to correct the root causes of why Deming, Sarasohn and Protzman's SPC was not getting through to Japanese Executives -mind, as Dr Deming and Mike stated, Leadership are/is the root cause aka Dr Juran's Trilogy. Inadvertantly, USA gave Japan the "principles" for Ohno's TPS-T Maketing S- T Development S all centered around TQM and Science of SQC (Kakuro Amasaka), by only giving Japan manufacturers smaller Presses whilst USA build bigger presses and transfer ones at that, they were forced to do a small/one piece flow - thanks to US and we all benefit by these 'new' Principles, Systems and THEN Tools as per Dr Like and Shingo Prize. Thankfully Toyota do not do Six Sigma and MIT/Womack, Jones, Roos summarised all of Toyota's 3 "Systems" as "Lean". Great video QD - look forward to Mike and perhaps his root cause analysis of the Banking world crisis.