Just to clarify - do you mean the expected year-over-year retention is 50% meaning that if 100 people are hired in a year, then 365 days later, only about 50 of them will still be there? How much of that is because they are leaving or being let go?
When I was there, managers were guided to PIP (performance improvement plan) to make these numbers. Whether that meant grinding people into the ground, natural attrition, or making up excuses to out people - I saw all of them happen.
