But that isn't too surprising. Seventy-five years ago, we had "factory worker", "foreman", and "manager". Compare that to any large company today and see the va

But that isn't too surprising. Seventy-five years ago, we had "factory worker", "foreman", and "manager". Compare that to any large company today and see the variety of jobs being done. Jobs, and therefore people, have specialized more, that's all.