In a nutshell: I think that (and I do not enjoy thinking about this)...I think that the crazies within the religion (who range from just low level people to co elder do and up) have won so many battles at this point (over the more balanced people/ideas)......that the people who tend to think in a more balanced fashion (whether they themselves be low level or higher up) are getting to be the real minority. I think this dynamic, will be what finally sinks the ship.
As we see with any organization (corporate or otherwise), many times there are reports that make you wonder (how is this thing alive or prospering?), and upon closer scrutiny, there are strong people in the background holding the walls up (who themselves get little attention). When those individuals in the background finally deteroriate (due to exasperation for obvious reasons)....the foundation begins to heavily weaken, and usually the crazies take this as a sign that they should get even crazier (because they have never even had a clue since day 1 to begin with).
This is the dynamic that I believe we will see go into high gear within the coming years. I really do not foresee reasonable people grabbing ahold of the wheel and correcting the course. Not that the course was ever correct to begin with, but at least it was sustainable on some level.
Obviously the first person who comes to mind is Ray Franz.
I know they have always been the minority, but when the ratio goes from 1:5 to 1:50, that will be the end.