CREATE TABLE table_42064 ("Season" TEXT, "Conf." TEXT, "Conf. finish" TEXT, "Div." TEXT, "Div. Finish" TEXT, "Head coach" TEXT)

What was the division when Jim O'Brien was the head coach and the team finished 2nd in the division?
SELECT "Div." FROM table_42064 WHERE "Div. Finish" = '2nd' AND "Head coach" = 'jim o''brien'
SELECT "Div." FROM "table_42064" WHERE "Div. Finish" = '2nd' AND "Head coach" = 'jim o\'brien'