CREATE TABLE table_2554 ("Team" TEXT, "Outgoing manager ( s ) " TEXT, "Manner of departure" TEXT, "Date of vacancy" TEXT, "Position in table" TEXT, "Replaced by" TEXT, "Date of appointment" TEXT)

What is the date of vacancy for the person that left because of end of caretaker contract?
SELECT "Date of vacancy" FROM table_2554 WHERE "Manner of departure" = 'End of caretaker contract'
SELECT "Date of vacancy" FROM "table_2554" WHERE "Manner of departure" = 'End of caretaker contract'