When was the scorer mccoist (3), johnston, butcher, steven?
CREATE TABLE "league_cup" (
  "date" text,
  "opponent" text,
  "venue" text,
  "result" text,
  "attendance" real,
  "scorers" text
);
SELECT "date" FROM "league_cup" WHERE "scorers"='mccoist (3), johnston, butcher, steven';