What was the manner of departure for the manager of Cercle Brugge?
CREATE TABLE "during_summer_break" (
  "team" text,
  "outgoing_manager" text,
  "manner_of_departure" text,
  "date_of_vacancy" text,
  "replaced_by" text,
  "date_of_appointment" text
);
SELECT "manner_of_departure" FROM "during_summer_break" WHERE "team"='Cercle Brugge';