The appointment ticks quite a few boxes, actually.
a) She's an actual, qualified sports administrator (thinking Kearns here).
b) she's from outside the game, and better still, outside the Country. Besides her relationship with the Darkness as a fan, she has no inherent biases. No petty provincialism or accusations of. (any other candidate, particularly Papsworth)
c) She's not a part of the 'boys club'. Indeed, she's a woman. (probably all the other candidates)
I don't buy the suggestion the game is too complicated to learn for an outsider. This isn't theoretical physics. It's a sporting competition. As a sports administrator, it's literally her role to go between different competitions, learning them and managing them.
As to whether she's good enough? Well, she can't be any worse than what we've got now (touch wood).