CREATE TABLE table_21272 ("Team" TEXT, "Outgoing manager" TEXT, "Manner of departure" TEXT, "Date of vacancy" TEXT, "Replaced by" TEXT, "Date of appointment" TEXT)

What was the manner in which Petrik Sander departed?
SELECT "Manner of departure" FROM table_21272 WHERE "Outgoing manager" = 'Petrik Sander'
SELECT "Manner of departure" FROM "table_21272" WHERE "Outgoing manager" = 'Petrik Sander'