How many teams had a #1 draft pick that won the Rookie of the Year Award?
CREATE TABLE "winners" (
  "season" real,
  "player" text,
  "position" text,
  "nationality" text,
  "team" text,
  "draft_pick_num" text,
  "draft_class" text,
  "college" text
);
SELECT COUNT("team") FROM "winners" WHERE "draft_pick_num"='1';