95% of changes made by management today make no improvement.
Management by results -- like driving a car by looking in rear view mirror.
Cease dependence on inspection to achieve quality. Eliminate the need for inspection on a mass basis by building quality into the product in the first place.
I should estimate that in my experience most troubles and most possibilities for improvement add up to the proportions something like this:
94% belongs to the system (responsibility of management)
The greatest waste in America is failure to use the abilities of people.
Experience teaches nothing. In fact there is no experience to record without theory… Without theory there is no learning… And that is their downfall. People copy examples and then they wonder what is the trouble. They look at examples and without theory they learn nothing.
American management thinks that they can just copy from Japan—but they don’t know what to copy!