CREATE TABLE table_27383390_4 (team VARCHAR2, date_of_vacancy VARCHAR2)

What is the team with the date of vacancy 8 dec 2010?
SELECT team FROM table_27383390_4 WHERE date_of_vacancy = "8 Dec 2010"
SELECT "team" FROM "table_27383390_4" WHERE "8 Dec 2010" = "date_of_vacancy"