How many times is the incoming head coach abdollah veysi?
CREATE TABLE "in_season" (
  "team" text,
  "outgoing_head_coach" text,
  "manner_of_departure" text,
  "date_of_vacancy" text,
  "position_in_table" real,
  "incoming_head_coach" text,
  "date_of_appointment" text
);
SELECT COUNT("team") FROM "in_season" WHERE "incoming_head_coach"='Abdollah Veysi';