Which Debut year has a Player of bob hayton, and Games smaller than 2?
CREATE TABLE "1960s" (
  "debut_year" real,
  "player" text,
  "games" real,
  "goals" real,
  "years_at_club" text
);
SELECT AVG("debut_year") FROM "1960s" WHERE "player"='bob hayton' AND "games"<2;