As a rule, the writer has found that those who were growling the most, and were loudest in asserting that they ought to be doing the whole thing, were only one-half or one-quarter performing their own particular functions. This desire to do every one's else work in addition to their own generally disappears when they are held to strict account in their particular line, and are given enough work to keep them hustling.
Источник: F. W. Taylor. Shop management. New York and London: Harper & Brothers publishers, 1911. P. 145.