CREATE TABLE table_name_46 (replaced_by VARCHAR, team VARCHAR, date_of_vacancy VARCHAR)

Who was the replacement for the Brussels team with a date of vacancy of 22 December 2007?
SELECT replaced_by FROM table_name_46 WHERE team = "brussels" AND date_of_vacancy = "22 december 2007"
SELECT "replaced_by" FROM "table_name_46" WHERE "22 december 2007" = "date_of_vacancy" AND "brussels" = "team"