SELECT COUNT(replaced_by) FROM table_11713303_2 WHERE date_of_appointment = "10 December 2007" AND manner_of_departure = "Quit"
Berapa banyak yang telah diganti di mana tanggal janji temu 10 Desember 2007 dan cara keberangkatan berhenti?
CREATE TABLE table_11713303_2 (replaced_by VARCHAR, date_of_appointment VARCHAR, manner_of_departure VARCHAR)