how many players played running back where status is made 53-man roster at start of 2009 season
CREATE TABLE "2009_pittsburgh_steelers_draft_selection" (
  "round" real,
  "pick_num" real,
  "player" text,
  "position" text,
  "height" text,
  "weight" text,
  "college" text,
  "status" text
);
SELECT COUNT("player") FROM "2009_pittsburgh_steelers_draft_selection" WHERE "status"='Made 53-man roster at start of 2009 season' AND "position"='Running back';