She is about to have a reckoning with her management, as to why her team of 7 is now down to 3, and key - possibly irreplaceable - skills have been allowed to walk out the door, and nobody has been cross-trained to fill in the gap.
I dunno, man, sometimes it's the culture. Nice people who are powerless to prevent catastrophe often end up at terrible organizations because they shine compared to everyone else. It's a land of the blind situation - a manager who would be "barely competent" at any healthy organization becomes "top talent" at the places no schlub with half a resume would settle for.
Have a friend who worked for a name everyone here would recognize. She was mid-level management. She bailed because she was pretty well convinced that the organization would end up on the national news. Six months after she was gone there was a Propublica investigation. And there were plenty of nice people there.