The great efficiency expert Juran, somewhere back in that era when all this became popular, produced an "efficiency consultants handbook" of some 3200 pages that was widely circulated, and lots of people pretended to have studied it.

I never found anyone who'd studied enough of it to recognize the half chapter he devoted to explaining:

"What you tell them to do doesn't have to work."

"You never listen to the people who have to do what you tell them to."

"The ONLY PERSON you have to make believe it will work is the manager who hired you (the one who signs your paycheck)."

Apparently he did understand how it all works.

John