The executive power ought to be in the hands of a monarch, because this branch of government, having need of dispatch, is better administered by one than by many: on the other hand, whatever depends on the legislative power, is oftentimes better regulated by many than by a single person.
Charles de Montesquieu
Monarch? Well, in the sense that a single (mono-) individual holds responsibility for all decisions. Not hereditary and most definitely not absolute!
Yes, I think he’s talking about the executive leader as a concept, whether it is a king, president, CEO or tribal chief. The head honcho, El Jefe, THE MAN.