What is the high loss total for players with zero wins and a win % greater than 0?
CREATE TABLE "most_games_as_starting_quarterback" (
  "name" text,
  "period" text,
  "starts" real,
  "wins" real,
  "losses" real,
  "ties" real,
  "win_pct" real
);
SELECT MAX("losses") FROM "most_games_as_starting_quarterback" WHERE "wins"=0 AND "win_pct">0;