The Chief Financial Officer (CFO) - the mastermind behind the corporate empire. They're the ones who keep the empire's finances running, who allocate the funds, who make the big decisions. They're the one who keeps the Emperor's crown jewels polished, who ensures the empire's coffers are always full.
Chief Engineer: The One Who Keeps the Empire's Schematics Up to Date
Chief Scientist: The One Who Keeps the Empire's Research and Development on the Cutting Edge
Assistant Chief Financial Officer: The One Who Keeps the Empire's Spreadsheets in Check
Departmental Heads: The Ones Who Keep the Empire's Various Fiefs Running