Jack Kelly, a former standout defensive end for UW-La Crosse, is now a graduate assistant focusing on defensive backs while recovering from an injury. Meanwhile, the Colorado Buffaloes are gearing up for their 2024 season opener against North Dakota State, with hopes of improving their defense under new coordinator Robert Livingston. Michigan's defense, bolstered by standout players like Mason Graham and Kenneth Grant, is expected to remain a top contender despite losing key contributors from the previous season. Indiana's first-year coach Curt Cignetti is optimistic about flipping the roster through the transfer portal, looking to improve a defense that struggled last season. The Hoosiers have made significant additions, including Freshman All-American D’Angelo Ponds, to bolster their defensive lineup. Overall, programs are leveraging new strategies and talent to enhance their defensive capabilities heading into the season.