Well what function of management are we talking about? In my experience, pure mangers will dictate personnel changes, work flow in the group, how much raise to give…etc, but Principals Engineers will work with Senior Engineers and dictate to them the design philosophy, what analysis to carry out, what procedures have to be done, what test that has to be carried out…etc, which is still part of engineering. The Principal does not actually do the work, but has the knowledge and experience of everything s/he is dictating for the Sr Engineers to accomplish. Fellow Engineers work closely with the CEO or upper management to define new technologies (or combination of current technologies) to win proposals. The Fellow Engineers still does engineering, but just at a higher level of management.
Tobalcane
"If you avoid failure, you also avoid success."
“Luck is where preparation meets opportunity”