Name the total number of position for don clegg
CREATE TABLE "fa_cup_appearances_and_goals" (
  "name" text,
  "nation" text,
  "position" text,
  "fa_cup_apps" real,
  "fa_cup_goals" real,
  "total_apps" real,
  "total_goals" real
);
SELECT COUNT("position") FROM "fa_cup_appearances_and_goals" WHERE "name"='Don Clegg';