Here are some of the keys to the defeat:Notre Dame had 14 in the first half and 17 for the game. You can't win that way and the Irish didn't. Iowa State only had six.When Notre Dame had to clamp down, it struggled. That was exemplified at the end of the first half, when it gave up an uncontested last-second layup to fall behind 35-23.The Cyclones never met a shot they wouldn't take, especially from long range. If they had hit more of their one-footers, this game would have been over by halftime. In reality, it was. Iowa State was 29-for-59 (49.2 percent) from the field, including 9-for-21 from three-point range.Notre Dame guards Eric Atkins and Jerian Grant combined for five turnovers, five points and one assist in the first half. Their second half was a little better. They finished with 16 points, four assists and seven turnovers. They were 5-for-18 from the field.Notre Dame forgot how to play it. It gave up nine fast-break points in the first half while scoring none. It finished with two compared to Iowa State's 12.