CREATE TABLE table_37690 ("Round" FLOAT, "Pick" FLOAT, "Player" TEXT, "Position" TEXT, "School" TEXT)

When was chuck morris, back, drafted?
SELECT MIN("Pick") FROM table_37690 WHERE "Position" = 'back' AND "Player" = 'chuck morris'
SELECT MIN("Pick") FROM "table_37690" WHERE "Player" = 'chuck morris' AND "Position" = 'back'