CREATE TABLE table_22614 ("Team" TEXT, "Outgoing manager" TEXT, "Manner of departure" TEXT, "Date of vacancy" TEXT, "Replaced by" TEXT, "Date of appointment" TEXT, "Position in table" TEXT)

At what date did the 23rd manager vacate the position?
SELECT "Date of vacancy" FROM table_22614 WHERE "Position in table" = '23rd'
SELECT "Date of vacancy" FROM "table_22614" WHERE "Position in table" = '23rd'