Posted by ESPN.com's Adam Rittenberg
After a long weekend off, it's time to dive back into the Big Ten position rankings. The secondary units are up next.
The top two look absolutely stacked, and the top four or five all will be solid. Quarterback play should be much better in the Big Ten this fall, and the secondaries will need to elevate their play.
1. Iowa -- Three starters return from a unit that helped Iowa lead the Big Ten in takeaways (32) and allow the fewest passing touchdowns (9) in 2008. Junior Amari Spievey is the league's best cover corner, and he'll be joined by safety Tyler Sash, who shared the league lead in interceptions with teammate Pat Angerer last fall. Bradley Fletcher will be missed and depth is a mini concern, but the back four will anchor Iowa's D.
2. Northwestern -- The Wildcats boast the Big Ten's deepest secondary and possibly the league's best. I covered a string of woeful Northwestern secondaries earlier this decade, and it's a major testament to assistants Mike Hankwitz and Jerry Brown that the unit has come this far. All four starters return, led by safety Brad Phillips and corner Sherrick McManis. Northwestern can go at least nine deep and boasts capable reserves like Brian Peters.
3. Ohio State -- It's a bit of a mixed bag for the Buckeyes, who return the Big Ten's top safety tandem but look thin at cornerback. Safeties Kurt Coleman and Anderson Russell both will contend for All-Big Ten honors after solid junior seasons. Ohio State loses Thorpe Award winner Malcolm Jenkins and hopes Chimdi Chekwa can fill the void. Several young players will get a chance to shine this fall, including Travis Howard and Ohrian Johnson.
4. Michigan State -- All-Big Ten safety Otis Wiley departs, but there's a lot to like about the Spartans secondary. Perhaps only Northwestern boasts more depth than Michigan State, which can go at least eight deep in the secondary. Corners Chris L. Rucker and Ross Weaver should have big seasons, and safety Trenton Robinson was the story of the spring and will earn major playing time.
5. Purdue -- Pop quiz: Which team led the Big Ten in pass defense last fall? It might surprise some to know Purdue topped the chart (183.2 ypg). A poor run defense contributed to the numbers, but the Boilers still look very strong in the back four entering 2009. Safety Torri Williams received a sixth year of eligibility during the offseason, and he'll join returning starters David Pender, Brandon King and Dwight Mclean.
6. Minnesota -- Minnesota led the Big Ten in takeaways for much of last season, and the secondary was the biggest reason why. Playmaking cornerback Traye Simmons leads a unit that returns three starters and could be deeper than it was in 2008. Senior corner Marcus Sherels and junior safety Kyle Theret have loads of experience, and Simmons is thrilled about the arrival of Wisconsin transfer Kim Royston at safety.
7. Wisconsin -- Easily the toughest unit to rank. The Badgers have the playmakers to be a top 4 secondary this fall. Cornerback Niles Brinkley recorded four interceptions last season, backup safety Shane Carter had a league-leading seven picks in 2007 and safety Jay Valai might be the Big Ten's hardest hitter. But consistency and depth are major concerns for Wisconsin. A lot depends on how cornerback Aaron Henry returns from knee problems.
8. Michigan -- Junior cornerback Donovan Warren could have a huge year or a really quiet one. See, Warren is easily the team's most experienced defensive back, and for that reason, opponents might try to avoid him and attack the Wolverines' unproven players. Michigan boasts a lot of young talent in the secondary -- corner Boubacar Cissoko, safety Troy Woolfolk, safety Vladimir Emilien -- and those players need to grow up fast.
9. Penn State -- This is easily the weakest unit on a team with Big Ten title aspirations. Penn State loses all four starters from a secondary that got exposed late in a loss to Iowa and early in a Rose Bowl beating against USC. The Lions need cornerback A.J. Wallace to straighten out his academic situation before Sept. 5. Safety Drew Astorino is ready to lead, but Penn State must identify capable pieces around him.
10. Illinois -- As expected, Vontae Davis bolted to the NFL a year early, leaving Illinois without a lock-down cornerback. The safeties also struggled at times last year, which creates plenty of questions heading into the fall. Illinois would certainly benefit from having a healthy Donsay Hardeman at safety, while cornerback Tavon Wilson showed some promising signs during spring ball.
11. Indiana -- It wouldn't surprise me one bit if Indiana finished much higher in my end-of-year rankings, but there are too many uncertainties entering camp. How will safeties Austin Thomas and Nick Polk respond from serious knee injuries? Has Ray Fisher successfully transitioned from wide receiver to cornerback? Will Florida transfer Jerimy Finch finally emerge as an impact player? The answers could determine whether Indiana survives on defense this fall.