Harassment and mobbing on the job
"Rather than investigate properly, IBM decided to close ranks and try to force Davidsen out of her job by giving her falsely negative annual reviews and "impossible" targets to meet, the tribunal found."
Just this alone should be enough to demote the managers involved, or force them out of their job for inappropriate behaviour.
The thing that disgusts me the most is that the managers are women. I trust Claire Bryant and Sandra Oliveira are now looking for other employment elsewhere as toilet cleaners (no offence to cleaners of any kind btw).