What is the average Goals, when Playoffs is Lost in Round 2, and when Games is less than 81?
CREATE TABLE "season_by_season_results" (
  "season" text,
  "games" real,
  "lost" real,
  "points" real,
  "pct_pct" real,
  "goals_for" real,
  "goals_against" real,
  "playoffs" text
);
SELECT AVG("goals_for") FROM "season_by_season_results" WHERE "playoffs"='lost in round 2' AND "games"<81;