Well, in a Widget Factory there are all sorts. It's a hierarchy of workers with different skills. Typically though it is experienced/managerial/technical staff,

Well, in a Widget Factory there are all sorts. It's a hierarchy of workers with different skills. Typically though it is experienced/managerial/technical staff, who figure out how to improve things. Yes some of them do come out of the lower ranks. Pretty sure Henry Ford was just an engineer in someone else's company before he started making cars which lead him to inventing the modern assembly line as we know it today.