PSU Nittany Lions

Good news: We are just 100 days away from the start of college football.

To mark the occasion, we're pulling out a checklist today of things that Big Ten teams need to accomplish between now and the start of the season. It's not quite "The Final Countdown" (cue GOB Bluth), but we are inching ever so close to kickoff. Here's what needs to happen in the next 100 days:

1. Identify a starting quarterback at Iowa, Indiana, Michigan State, Penn State, Purdue and Wisconsin: It seems as if there are an unusually high number of Big Ten teams who don't know for sure who their starting quarterbacks will be in the fall. (You could also add Illinois and Minnesota to this list, though it appears likely that Nathan Scheelhaase and Philip Nelson, respectively, would have to lose the job in the summer.) Iowa had a three-man race this spring that will probably come down to Jake Rudock and Cody Sokol in training camp. There's very little separation between Cameron Coffman, Nate Sudfeld and Tre Roberson at Indiana. Connor Cook continues to breathe down the neck of incumbent Andrew Maxwell at Michigan State. Tyler Ferguson claimed the starting job at Penn State during the spring, prompting Steven Bench to transfer, but highly touted recruit Christian Hackenberg will push for immediate time. Purdue will likely decide between senior Rob Henry and true freshman Danny Etling. Joel Stave and Curt Phillips separated themselves from the Wisconsin QB derby this spring, while incoming junior college transfer Tanner McEvoy could expand the race this summer. All these situations should work themselves out in August, but no team wants to be dealing with an unsettled quarterback competition once the season starts.

2. Solidify the defensive front sevens at Nebraska and Ohio State: The Huskers and Buckeyes stand out as two of the top Big Ten contenders in 2013, but both have serious questions at defensive line and linebacker. The issue is more dire at Nebraska, which struggled there last year and is replacing all but one starter from 2012. Summer arrivals, including junior college star Randy Gregory, could make an immediate impact, and players coming back from injury such as linebacker Zaire Anderson and defensive tackle Thad Randle will need to play up to potential. Ohio State is less concerned about its defense after the spring performance of defensive ends Noah Spence and Adolphus Washington, but linebacker Ryan Shazier is still the only returning starter in the front seven. Curtis Grant must finally live up to his talent to provide help to Shazier, and someone must assume John Simon's leadership role.

3. Locate the next great receivers: A few Big Ten teams, such as Nebraska, Penn State and Indiana, don't have to worry too much about who will catch the ball this year. But just about everybody else needs to find playmakers in the passing game. The top of that list includes Iowa, which couldn't generate a downfield passing attack last year; Illinois, which needs receivers to make new coordinator Bill Cubit's spread system work; Michigan State, whose young wideouts must improve on last year's shaky performance; Minnesota, which doesn't have many proven weapons to surround Nelson; and Wisconsin, which still must find a complement to Jared Abbrederis. Ohio State coach Urban Meyer is hoping some incoming freshmen augment a very thin receiver group, while Michigan needs to replace the production of Junior Hemingway and Roy Roundtree. Purdue and Northwestern have lots of speedy options but could use the emergence of a true No. 1 target. Receiver was a weak spot as a whole in the Big Ten in 2012, and hopefully some players will improve through offseason voluntary passing drills.

4. Strengthen the running game at Michigan, Michigan State, Indiana and elsewhere: It's a cliché to say that you have to run the ball to win, but in the case of the Big Ten, that's always been true. That's why it's so vital for the Wolverines and Spartans -- who both expect to contend in the Legends Division -- to find answers in their rushing attacks. Michigan is replacing its entire starting interior offensive line after struggling to get a running game going outside of Denard Robinson last year. Fitz Toussaint is hoping to bounce back from a disappointing season and a leg injury, while hotshot freshman Derrick Green could get lots of carries right away. Michigan State's efforts to replace workhorse extraordinaire Le'Veon Bell this spring ended up with converted linebacker Riley Bullough emerging as the top back in a mediocre field. Three incoming freshmen will compete for time right away this summer. Indiana coach Kevin Wilson put a heavy emphasis on the running game this spring, hoping for more balance after his team led the league in passing and finished last in rushing last season. Iowa has depth for once at running back but needs to stay healthy there, as the ground game is the key to the Hawkeyes' entire offensive philosophy. Nebraska also can't afford injuries, as Ameer Abdullah and Imani Cross are the lone backs with any experience. Illinois averaged just 3.5 yards per carry as a team last year, a number that must improve. And while Purdue loved what it saw from Akeem Hunt this spring, he still must prove he can be an every-down back after attempting only 42 carries last season.

5. Mesh with new coaches: Wisconsin's Gary Andersen and Purdue's Darrell Hazell are the fresh faces among head coaches in the league, and while they did a great job of connecting with their players this spring, they still need to get their new systems fully in place. The Badgers will be using some new, 3-4 looks on defense, while Hazell wants a more physical and disciplined team than we've seen from the Boilermakers of late. Michigan State has a new offensive playcaller in Dave Warner, while Cubit was one of many staff changes at Illinois. Penn State's John Butler takes over from Ted Roof as the Lions' defensive coordinator. With only 15 spring practices so far to implement their styles, those new coaches have had to rely on a lot of classroom time and players learning on their own. That will have to continue this summer during voluntary workouts and then will intensify when preseason practice begins. For new coaches, it's a race against the calendar -- and the calendar says there are only 100 days until kickoff.