1. Protecting the ball makes for smooth sailing: It seemed like we'd never see the day Notre Dame went 60 minutes without a turnover, but Saturday changed that.
The Fighting Irish eclipsed the 500-yard mark for the third time this season, but won while crossing that plateau for the first time, as they were doomed by five-turnover performances in Weeks 1 and 2. Saturday was huge for the offense, particularly Tommy Rees, who eliminated many of the befuddling miscues that had Irish fans calling for a new quarterback after his first three and a half games under center. Now, for the first time all season, we can no longer say Notre Dame leads the nation in turnovers or has the worst turnover margin. (The first honor belongs to East Carolina, with 17. The latter is shared by East Carolina, Iowa State and Western Kentucky, at minus-2.00).
2. The rush defense is for real: Notre Dame had another dominating performance up front Saturday, limiting the Big Ten's second-ranked rushing offense to 84 yards on 27 carries. This came two weeks after the Irish allowed just 29 rushing yards against Michigan State and one week after holding Pitt's Ray Graham to 89 yards, something that looks like more of an accomplishment after Graham exploded for 226 yards Thursday against South Florida.
3. Special teams need to improve. Still: Brian Kelly said Saturday that he didn't want to sound like sour milk when listing what his team could have done better, but the Irish did leave points on the board. David Ruffer, a 2010 Lou Groza Award finalist, missed two field goals. And the punt return experiment once again looked like just that -- an experiment. John Goodman netted minus-3 yards on two returns and, in a real head-scratcher, watched one ball sail over his head and roll for a 61-yard punt in the first quarter.
4. Penalties still need clearing up: This one gets overshadowed because the Irish didn't turn the ball over, won by 28 points and saw their opponent commit an astounding 13 penalties for 118 yards. But Notre Dame itself committed eight penalties for 85 yards, including an ugly one when long snapper Jordan Cowart got tangled up with several Purdue players on a second-quarter punt. Mental lapses such as these are forgivable against the Boilermakers, not so much against USC or Stanford.