Quality is made in the board room. A worker can deliver lower quality, but she cannot deliver quality better than the system allow.
It is not necessary to change. Survival is not mandatory.
95% of changes made by management today make no improvement.
Defects are not free. Somebody makes them, and gets paid for making them.
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.