According to wikipedia there are 16 members in the “intelligence community”
https://en.wikipedia.org/wiki/United_States_Intelligence_Community#Organization
So... she just revealed there is a 17th?
They are all subsumed under the Office of the Director of National Intelligence. IT calls itself the 17th center.
To my mind it is just a bureaucratic clearing agency for intelligence and the President only has one director to brow beat for what he wants to say. It was one of Bush’s bright ideas (like DHS and TSA) and he decided to give the smaller DNI the authority over all the other 16. Prior to that it wasn’t even included in the 16 centers collection that I can recall.