For a change, Duke didn't have to dig itself out of a hole. Its defense took care of that by smothering Boston College. The Blue Devils (No. 4 ESPN/USA Today, No. 5 AP), coming off consecutive wins with late rallies, held the Eagles to their lowest point total this season in a 75-50 victory on Sunday night. Seth Curry had 18 points and Austin Rivers scored 16, but defense was the big difference.