I have no idea of the story, but General Manager Mike Bordage apparently resigned last fall. The only reason I know is because there were garbled stories later about the new GM, Amy's friend Al, yet nobody bothers to say something about the old one leaving. It was one of those common Fringe stories where half the story was missing.
He was box office manager for I guess 2 years, kind of one of the staff jobs that like the technicians, are equal to the volunteers (except they get paid). Maybe it was different working in the box office, but pretty much everyone who ran the box office got treated by me the same as the volunteers. Then he worked in the counting house, and then became GM in the late summer of 2011, when Patrick retired from the Fringe. I don't know much about him, but he at least had worked at the various tasks during the Fringe, instead of just appearing as GM. Yes, he wasn't the GM long, but people shouldn't just disappear from the Fringe.