How many draws have a Cambridge United career of 2008–2009 and less than 13 losses?
CREATE TABLE "managers_since_1970" (
  "nationality" text,
  "cambridge_united_career" text,
  "games" real,
  "drawn" real,
  "lost" real,
  "pct_won" text,
  "pts_game" text
);
SELECT COUNT("drawn") FROM "managers_since_1970" WHERE "cambridge_united_career"='2008–2009' AND "lost"<13;