CREATE TABLE table_17124 ("Team" TEXT, "Outgoing manager" TEXT, "Manner of departure" TEXT, "Date of vacancy" TEXT, "Replaced by" TEXT, "Date of appointment" TEXT)

What is the date of vacancy for 10 december 2007 when quit?
SELECT "Date of vacancy" FROM table_17124 WHERE "Date of appointment" = '10 December 2007' AND "Manner of departure" = 'Quit'
SELECT "Date of vacancy" FROM "table_17124" WHERE "Date of appointment" = '10 December 2007' AND "Manner of departure" = 'Quit'