What if the White Council is operating in reverse of the way it's "supposed to be"?
What if someone, somehow, erased WC's the "institutional knowledge" and reconstituted it in its modern form?
(Maybe some "temporary measure" was put in place to handle some "temporary" situation, but then those who *like* the power they gained "arranged" for the change to continue, and eventually be made permanent... I dunno)
How "should" it be, under this theory?
Basically -- serving the Warden of Demonreach.
That's right, the Warden. Don't you think it's odd that the same title applies to the WC's enforcement-arm as to the guy in charge of the island? I'm going to allege that -- at this moment -- Harry Dresden is the legitimate head of the WC's "Wardens," exactly the same way a Sheriff is in charge of all the deputies. It's just that the White Council (and the Wardens themselves) have forgotten.
I posit that the ENTIRE White Council exists primarily as support-services for the Wardens. The Wardens are, essentially, the "military branch" of the WC, but (as any military historian can tell you) it takes about 10:1 logistics & support personnel to maintain each soldier in the field.
As I eyeball this, it looks to me like the entire White Council is, roughly, sized to be the non-frontline portion -- the support staff -- for the Wardens.
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Let's take a step back, and look at Merlin -- O.G. Merlin, not the current (or any) holder of the title.
We know Merlin founded the White Council. And we know Merlin created the Prison on the island (now called Demonreach). Ponder those two a moment. And consider importance of what happens on/under Demonreach.
If (as I suggest above) the Warden isn't a coincidental title with regard to "the Wardens" (or vice versa, if you prefer the other order) it follows that "the Wardens" are an accessory organizion of the Warden, and of Demonreach. And then the various non-combatant wizards attached to "the Wardens" are... well... support staff.
But somehow, somewhere, somewhen, things got reversed.
The White Council got turned inside-out.
(OK, I admit that I myself don't find this WAG wholly convincing. I'm dubious Jim Butcher would write the setting such that the ONLY wizards' org was "supposed to be" a vast military magico-industrial complex supporting a doomsday prison... and those are the good guys!... But I find the string of coincidences (outlined above) a bit too coincidental.)