Our postseason position rankings are getting close to wrapping up, but first let's put a bow on the defensive side of the ball with a look at the defensive backs.
Star power matters, but depth is also important. The secondary wasn't a particularly standout group for the Big Ten in 2012, though there were some elite players in the back end of the league's defenses. You can see how we ranked the DB groups in the preseason here. And here's how we see it now:
1. Michigan State (Preseason ranking: 1): So maybe Johnny Adams didn't have quite the season we expected out of him, but he was still easily one of the best cornerbacks in the league. And Darqueze Dennard reached an elite level, arguably turning in a better year than Adams at the other cornerback spot. Isaiah Lewis remained one of the top safeties in the league. The Spartans finished third nationally in pass efficiency defense, and their secondary was also stout in run support and on the occasional blitz.
2. Ohio State (Preseason: 2): Teams could pass on the Buckeyes, especially early, as they ended up ranked just 11th in the league in passing yards allowed. But Bradley Roby had an All-American year at cornerback, and Travis Howard grabbed four interceptions while improving over the course of the fall. While Ohio State's safeties sometimes went for the big hit instead of making the safe play, this group had star power and played great when it mattered.
3. Nebraska (Preseason: 4): The numbers would suggest a higher ranking, as the Cornhuskers finished fourth nationally in passing yards allowed and ninth in pass efficiency defense. Yet we can't forget some of the secondary's problems in open-field tackling and helping against the run in big games, or how Aaron Murray and Georgia dissected it in the Capital One Bowl. Still, this group -- led by P.J. Smith, Daimion Stafford and Ciante Evans -- was deep and clearly comprised the strength of Nebraska's defense.
4. Minnesota (Preseason: 10): The biggest climber on our board, the Gophers made a major improvement in their secondary thanks to the breakout year by Michael Carter and the return of Troy Stoudermire at the other corner spot. Derrick Wells also made a major impact at safety as Minnesota went from having one of the worst pass defenses in the country in 2011 to the No. 23 pass efficiency defense in 2012.
5. Michigan (Preseason: 3): The Wolverines lost Blake Countess in the first half of the opener and didn't have anyone make first- or second-team All-Big Ten from its secondary. Still, this group had two sturdy seniors in safety Jordan Kovacs and cornerback J.T. Floyd and finished second in the league in pass defense. Those numbers may be a bit skewed by the fact that Michigan didn't face many high-powered passing teams, but this group held its own.
6. Wisconsin (Preseason: 7): The late-game breakdowns by the secondary in 2011 were a distant memory as the Badgers were solid all the way around at defensive back in 2012. They finished third in the league in pass efficiency defense. Getting Devin Smith back at corner really helped, as did the marked improvement of Marcus Cromartie. Safeties Dezmen Southward and Shelton Johnson also had good years. The bad news for Wisconsin is that only Southward returns from that veteran group.
7. Penn State (Preseason: 9): The defensive backfield was the big question mark on the Nittany Lions' defense heading into the season with four new starters. But despite a lack of experienced depth, the starting group of Stephon Morris, Adrian Amos, Malcolm Willis and Stephen Obeng-Agyapong prevented Penn State from experiencing a drop-off at DB, allowing just 15 touchdown passes in 12 games.
8. Purdue (Preseason: 5): A secondary with two cornerbacks as talented as Ricardo Allen and Josh Johnson should not be ranked this low. But the Boilermakers simply got burned too much in big games to be ranked much higher than this. They did tie for the league lead with 14 interceptions, paced by Landon Feichter's four picks.
9. Northwestern (Preseason: 11): The Wildcats' secondary was much, much better when cornerback Nick VanHoose was healthy, and Ibraheim Campbell had a terrific year at safety. This group showed its potential early in the season and in the bowl win over Mississippi State. But the late-game breakdowns, particularly against Michigan (the Roy Roundtree catch) and Nebraska, prevent a higher ranking.
10. Iowa (Preseason: 8): Micah Hyde was named the Big Ten defensive back of the year. This really happened. I looked it up again to make sure. Not that Hyde had a bad season. He just didn't really stand out nearly as much as guys like Dennard, Carter or Roby. Hyde and fellow cornerback B.J. Lowery formed a good tandem, but safety play was shaky for the Hawkeyes and offenses torched them down the stretch. Iowa allowed opponents a league-worst 63.5 completion percentage.
11. Illinois (Preseason: 6): Terry Hawthorne remained an underrated cornerback who should hear his name called in the April NFL draft. Outside of that, it's hard to find many positives for the Illini secondary, as the team finished last in the Big Ten in pass efficiency defense and didn't have much else to hang its hat on.
12. Indiana (Preseason: 12): The Hoosiers had hopes of making strides in the secondary with returning starters Lawrence Barnett, Greg Heban and Mark Murphy. But Indiana gave up more touchdown passes (23) than any other league team while only intercepting seven passes. While not all of the pass defense problems can be blamed on the secondary, of course, it's clear this team still lacks high-impact players in the back end.