CREATE TABLE "atlanta_falcons_draft_history" (
  "round" real,
  "pick_num" real,
  "overall" real,
  "name" text,
  "position" text,
  "college" text
);

Question: What is the mean pick number for Iowa College when the overall is less than 200?
SQL: SELECT AVG("pick_num") FROM "atlanta_falcons_draft_history" WHERE "college"='iowa' AND "overall"<200;