What position is the player from the United States play for the Grizzlies from 2000-2001?
CREATE TABLE "a" (
  "player" text,
  "nationality" text,
  "position" text,
  "years_for_grizzlies" text,
  "school_club_team" text
);
SELECT "position" FROM "a" WHERE "nationality"='united states' AND "years_for_grizzlies"='2000-2001';