CREATE TABLE table_11713303_2 (manner_of_departure VARCHAR, outgoing_manager VARCHAR)

How many manners of departure did peter voets have?
SELECT COUNT(manner_of_departure) FROM table_11713303_2 WHERE outgoing_manager = "Peter Voets"
SELECT COUNT("manner_of_departure") FROM "table_11713303_2" WHERE "Peter Voets" = "outgoing_manager"