CREATE TABLE table_17327264_3 (date_of_appointment VARCHAR(255), replaced_by VARCHAR(255), manner_of_departure VARCHAR(255), position_in_table VARCHAR(255))
Name the date of appointment for sacked and 14th position replaced by marco kostmann
    
SQL: SELECT date_of_appointment FROM table_17327264_3 WHERE manner_of_departure = "Sacked" AND position_in_table = "14th" AND replaced_by = "Marco Kostmann"