The evolution continues.
If you're over 30, there's a good chance you picture Tommy Frazier running the option out of an I-formation when someone first mentions the Nebraska Cornhuskers. But in the two decades since famed coach Tom Osborne retired, much has changed about college football, and the Huskers have struggled to keep up.
After running the triple-option for decades under the famed coach and his disciple, Frank Solich, the Huskers brought in Bill Callahan to install a west coast pro-style attack that never took flight in 2004. After Bo Pelini took over the program in 2008, the Huskers got their own version of the 'spread' offense that was becoming so popular at the time, using multiple-receiver shotgun formations to stretch the defense in order to better execute option-run plays.