- Adam Rittenberg, ESPN Staff Writer
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Oddball is coming to the Big Ten in 2014.
After spreading through the NFL and much of college football, odd defenses -- with three down linemen instead of four -- will be more visible in the Big Ten this season. Three Big Ten teams -- Wisconsin, Maryland and Indiana -- will operate mainly with three linemen and four linebackers. Although the Terrapins and Hoosiers prefer the hybrid label for their defenses, all three units will show alignments somewhat foreign to the conference.
In 2012, all 12 Big Ten teams used base defenses featuring four down linemen. Defenses with odd fronts had made cameos at places like Michigan and Indiana in the past -- Northwestern considered moving to a 3-4 early in Pat Fitzgerald's tenure but has since elected to remain in a 4-3 -- but unlike the NFL, where about half of the teams use odd fronts, the Big Ten steered clear of the trend.
Last season, Wisconsin installed the 3-4, which the new coaching staff had used at Utah State. Indiana hopes to upgrade a perennially poor defense as it uses more of a 3-4 look under new defensive coordinator Brian Knorr. Maryland will keep its scheme -- three linemen, four linebackers but not the traditional two-gap approach seen with 3-4 defenses -- as it transitions from the ACC.
"[Big Ten teams] don't see an odd front every week," Knorr told ESPN.com. "Being multiple, giving them different looks, something they haven't seen, hopefully that's an advantage for us."
Defensive coordinator Dave Aranda always planned to install a 3-4 at Wisconsin. He just wasn't sure the Badgers had the personnel to do it in Year 1. They needed a nose tackle who could occupy two blockers, and outside linebackers with the speed-size mix to do it all. Fortunately, Beau Allen filled the nose position and Ethan Armstrong and Brendan Kelly occupied the outside spots.
Wisconsin finished in the top seven nationally in points allowed (16.3 ppg), rush yards allowed (102.5 ypg), total yards allowed (305.1 ypg) and third-down conversions against (30.6 percent). Aranda likes having an extra linebacker to defend spread offenses, and the 3-4 also has the flexibility to stop the traditional offenses for which the Big Ten is known.
"The power run fits in well with the 3-4," Aranda said.
Indiana will mix three- and four-man fronts, but like Aranda, Knorr inherits players he thinks can fill the critical roles in the 3-4. Nick Mangieri and Zack Shaw, who played defensive end in the previous system, have the ability to blitz from the perimeter or drop back in coverage.
"The offenses are so wide open, and you have to be able to cover the entire field," Knorr said. "Having the ability to drop eight at times, gives you an extra guy in coverage. Having the ability to have five guys in a great position to blitz right away gives you the versatility we're looking for, while being able to keep our disguise."
The disguise, according to Aranda, is what can set 3-4 defenses apart. He wants to keep offenses guessing about the fourth rusher: Will it be the weakside inside linebacker? The strongside outside linebacker? A safety? A cornerback?
As long as the outside linebackers have the ability to both rush and cover, without giving up too much, defensive play-callers can really mix things up.
"I know a lot of teams will be confused and we'll cause a lot of uncertainty and chaos for the offense," Indiana linebacker David Cooper said. "I think we'll do great in the Big Ten."
Maryland typically will use four linebackers, but doesn't feature the massive defensive linemen seen in standard two-gap, 3-4 looks. The Terrapins last season generated pressure both from the linebacker spot (Marcus Whitfield had nine sacks and 15.5 tackles for loss) and the line (end Andre Monroe had 9.5 sacks and 17 tackles for loss). They return nine defensive starters.
Aranda used to visit Maryland defensive coordinator Brian Stewart when Stewart coached in the NFL under Wade Phillips, a longtime 3-4 defense practitioner. Aranda looks forward to seeing how other odd defenses fare in the Big Ten this season.
"Part of the issue with us last year is we'd go into games not knowing how people would block us," Aranda said. "That works both ways because people don't know how we're going to line up, either, or at least that first year. Now that film's out, but it definitely helps to me when you see someone play Indiana or someone play Maryland, you can see how they're lining up vs. 3-4."
Will the 3-4 keep spreading around the Big Ten? Defensive line has been the league's strongest position in recent years, as players in traditional end or tackle roles have gone on to the NFL in droves.
"There's such a fertile ground for defensive linemen in our area," Aranda admits. "We're trading some of those guys for linebackers and secondary players. Our corners and our safeties are as much our pass-rushers as our D-linemen are.
"There has to be a decision or a philosophy, somewhere along the line, of where you're going with it."
Depending on the results at Wisconsin, Indiana and Maryland, more Big Ten teams could choose to be odd.