Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_28164986_4 (incoming_manager VARCHAR, manner_of_departure VARCHAR)
### Question:
how many new managers replaced  manager(s) who resigned? 
### Answer:
SELECT COUNT(incoming_manager) FROM table_28164986_4 WHERE manner_of_departure = "Resigned"