Also, to add, every person signed up already could be a dubious and sneaky wolf ...so I guess I don't see any problem if the wolves are handpicked or chosen randomly. Personally, I think everyone who's signed up would be an excellent choice for a wolf anyway.
And when will everyone just stop trying to figure out the 'cogs' of
Fea's mind?

I gave up a long time ago and learned you just let
Fea do what she wants and everything turns out fine. I would lose my sanity if I tried to figure out what she was thinking and why she picked the people she did (and even if she did pick them...that's a whole seperate can of worms

).