Im afraid that while this seems logical, it's not how the real world actually is. I've known of many heads of departments with rather grand titles and only a very small percentage of them even know the slightest of what goes on below them or why. Heads of IT, software departments and even CIOs that cant even login. In fact, they often move to similar roles in other companies because the new companies believe they must be good to be in that seniority of the current company. When in fact the current company just can't wait for them to go. After a couple of these moves, they have a whole career of senior positions in immpressive companies. I can think of about 10 examples within ftse10 and fortune25 companies right now that I've had the "pleasure" to work with.