Honestly I gotta side with Beav, Blade, Nyko and the others. I truly understand where you're coming from @Bushito and that it wouldn't be fair to you if this was all some kind of a masterplan, but as Blade has said she doesn't want to GM, and if you don't want her in the CGY discord cause she can see the "tactics" then just don't put her in it and just use her player.
It isn't that hard of a decision tbh and I don't see why you feel like the threat of @BladeMaiden leaving in 3 (!!) seasons (which would be a threat with any player from this league, since the same could happen) justifies you ruining all the time she has spent on Brick.