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_47901 ( "Team" text, "Outgoing manager" text, "Manner of departure" text, "Date of vacancy" text, "Replaced by" text, "Date of appointment" text, "Position in table" text )

### Question ###
Who was the outgoing manager who departed due to fc energie cottbus purchased rights?

### Accurate SQL ###

SELECT "Outgoing manager" FROM table_47901 WHERE "Manner of departure" = 'fc energie cottbus purchased rights'