What is the Season when the Lead was don bartlett, and the third was don walchuk, and a Second of carter rycroft?
CREATE TABLE "teams" (
  "season" text,
  "skip" text,
  "third" text,
  "second" text,
  "lead" text
);
SELECT "season" FROM "teams" WHERE "lead"='don bartlett' AND "third"='don walchuk' AND "second"='carter rycroft';