It stinks of Necheyev.
???
What does Nechayev have to do with any of this?
It would be nice to know exactly when Clancy and the Commodore were originally promoted to their current positions.
Well, we know that Oh was Chief of Starfleet Security by 2390, when she ordered the murders of Ambassador Beautiful Flower and Jana on pain of the remotely-controlled destruction of the USS Ibn Majid. It's unclear if she was Chief by 2385.
From a drama perspective it would add an extra dimension to the show but it remains to be seen if it will even be referenced again, especially as the show only has 10 episodes a season.
And because the show isn't actually about the office politics of Starfleet Headquarters...