In how many teams is Waqar Younis the head coach?
CREATE TABLE "franchises" (
  "team" text,
  "province" text,
  "owner_s" text,
  "price" text,
  "captain" text,
  "head_coach" text,
  "icon_player" text
);
SELECT COUNT("team") FROM "franchises" WHERE "head_coach"='Waqar Younis';