The following fields are wanted:

gross_additions_by_month_by_role

gross_departures_by_month_by_role

churn_rate_by_month_by_role

growth_rate_by_month_by_role

Essentially this combines employee_count_by_month_by_role with gross_additions_by_month & gross_departures_by_month, also adding a role element.

This can encapsulate this card: https://peopledatalabs.canny.io/feature-requests/p/employee-churn-by-role