So the GM would be admitting she made a mistake in hiring if she ever had to let this employee go? And she doesn't perceive herself as ever being wrong? So that leaves you without a GM capable of making mistakes--so things are always either someone else's fault or just not worked out yet.

Someone asked earlier about an HR department. Is there one? Is that what you mean by "a system in place"?

Otherwise, as individuals it all seems to be a matter of luck. I guess maybe, lacking a miracle, you're sunk. It's so unfair, & I'm truly sorry.