Like the fact that in almost all departments some items require less time per ton than others, 520. For example, in the rolling department, you squeeze red-hot steel into plates to produce ten tons of two-inch thick plates, which takes much less time than to produce ten tons of one-half-inch thick plates. The result must be that in order to maximize their performance of tons-per-hour in a given measurement period, departments tend to produce the fast items at the expense of the slow ones, 540. You can imagine what this
