"In the 1980s, the Japanese car manufacturer Toyota opened its first American plant in Fremont, Calif. The factory was guided by a management philosophy known as the Toyota Production System, which at its core holds that even the most complex problems have simple causes – if you know how to look for them.
For us, “the Five Whys” worked in a fairly straightforward manner. We began by identifying a problem: We never managed to have family dinner. Then we explored, at the most surface level, why that was true: Because my wife and I always got home later than we expected."