That's not what I'm asking. People tend to resign from companies when buyouts and such happen. Buyouts can result in employees have salaries cut, pensions adjusted, holidays reduce, hours extended, etc., and some positions become redundant because there is a surplus of managers, for example.
It's not unreasonable to expect that some personnel would prefer to remain 3rd party rather than 1st party, and sought employment elsewhere.
Working for big companies can be exceptionally shitty.
But maybe everyone was happy and stayed. That's all.