In the immense shed where we worked, something was always going wrong. A bearing would burn out, a belt snap or a gear break. Whenever this happened in a section, work would screech to a halt, and frantic messages would begin to flow up and down the hierarchy. The worker nearest the breakdown would notify his foreman. He, in turn, would tell the production supervisor. The production supervisor would send word to the maintenance supervisor. The maintenance supervisor would dispatch a crew to repair the damage. Information in this system is passed by the worker "upward" through the foreman to
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