They made decisions relevant to their work. i.e. it's not that a random employee would go our and acquire a competitor or buy a business jet for themselves (though in theory they could but that theory never got put to a test). So the CEO still made CEO-level decisions and employees made decisions in their area while needing to ask themselves what's best for the company, economically, just like the president should. Trust people to do their job kind of thing really, trust teams to work together etc.