CREATE TABLE table_name_40 (date_of_vacancy VARCHAR(255), manner_of_departure VARCHAR(255), outgoing_manager VARCHAR(255))
What was the date of vacancy of svetozar šapurić who departed with mutual consent?
    
SQL: SELECT date_of_vacancy FROM table_name_40 WHERE manner_of_departure = "mutual consent" AND outgoing_manager = "svetozar šapurić"