Pelini showed that he could have an aggressive defense under Solich since that's what Frank wanted. Why Pelini refused to have that was another of the mysteries of that regime.
Pelini seemed to get caught up in his masterful scheme used in the Big 12 days, when there was no qb run game to worry about, and very little run game period. We played offenses who slung it around 50 times a game. we could line up 4 down, tee off, and sit 7 in coverage, after hours of film study, and know each team's every tendancy, route concept, check, and skillset. Theres so many instances in 2009 and 2010 where it's clearly obvious that each and every one of our 7 db's/backers knew what routes were coming before the snap. This made our matchup coverage like a blanket. And it wasnt bend dont break, it was shut down.
Then the big ten came along and from team to team there was variety of different systems. There was spread with qb run. there was convential with power. Mobile qb's. Running qb's. New teams to get acclimated too. And for whatever reason, it seemed like the adjustment was never made.
there was a tidbit about Dave Arranda (Wisconsin DC) in a think it was during the Wisconsin game about his defensive philosophy coming from the Pac12 when he was asked about transitioning to the BigTen and he was quoted as saying "you have to get a safety down the the line, and you gotta get 8-9 in the box and stop the run first and foremost. Nothing else matters if you cant stop the run" or something along those lines. This was a tenured Pac12 guy that used 3 man rush to defend wide open spreads that knew what had to be done without coaching a down in the Big10. So I'm just mind boggled by the overall lack of adjustment by our staff in 4 seasons in the new conference.