They also testified that 'Andy' never got yelled at. She was happy to do Mike's bidding and change patient charts to please him. They seemed to have a 'close' relationship. They testified Michael seemed to be destroying all their notings on her patient chart.
This doesn't seem like someone 'angry' over poor treatment of Terri.
Whatever the details are, it is clear that this case was not handled by the book. I totally forgot about the changed patient charts - that alone is damning.