Name the date of appointment for sacked and 14th position replaced by marco kostmann
create table table_17327264_3 (date_of_appointment varchar, replaced_by varchar, manner_of_departure varchar, position_in_table varchar, PRIMARY KEY (date_of_appointment))
select date_of_appointment from table_17327264_3 where manner_of_departure = "sacked" and position_in_table = "14th" and replaced_by = "marco kostmann"