Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_45757 ( "Team" text, "Outgoing manager" text, "Manner of departure" text, "Date of vacancy" text, "Replaced by" text, "Date of appointment" text )

### Question ###
What is Replaced By, when Date of Vacancy is '23 February 2009'?

### Accurate SQL ###

SELECT "Replaced by" FROM table_45757 WHERE "Date of vacancy" = '23 february 2009'