Illinois football kicked off its 2026 season on Thursday night inside Gies Memorial Stadium. The new state-of-the-art video board was on display for fans, and Illini Nation enjoyed a 44-23 victory. The Illini started their 2026 campaign on a high note at 1-0, but they were unable to cover the spread, and the defense remains a major concern.

UAB racked up 413 total yards in the game, including more passing and rushing yards than Illinois over the course of the 60 minutes. The Blazers faced little resistance from the Illinois defense until reaching the red zone on multiple drives.

The Illini won nine games last season, but defense was a major concern throughout the year, and those issues appear to have carried over into this season.

Josh Whitman and the Illini staff made the difficult decision in the offseason to part ways with defensive coordinator Aaron Henry following last year's struggles. Illinois ranked No. 56 in total defense, No. 63 in opposing passing yards per game, No. 83 in passing yards per game, and No. 55 in opposing rushing touchdowns per game.

Illinois was hoping to improve on that side of the ball with the hiring of new defensive coordinator Bobby Hauck, but the defense did not look much improved on Thursday night. UAB ran the ball effectively against Illinois, averaging four yards per carry and scoring 23 points.

Hauck has implemented a 3-3-5 defensive scheme that has worked throughout his long and successful college football career. Hauck was most recently at Montana, where the Grizzlies finished the season 13-2 before losing in the FCS semifinals. He made numerous FCS semifinal and championship appearances throughout his tenure at Montana, but struggled during his time at UNLV, winning just 15 games over a five-year span.

It feels like the Illinois defensive line could be in for some tough sledding moving forward if the Illini stick with the 3-3-5 scheme. So much of the defense's success relies on the defensive line being able to stop the run, and I am not sure this group is good enough to consistently execute it.

There is not much time to correct these issues, as Illinois will face its first real test when Duke visits Champaign next Saturday. Duke likely will not be one of the top teams in the ACC, but the Blue Devils have significantly more talent on their roster than UAB. They are a Power Four program and are coming off an ACC championship.

The Illini defense did a good job of holding UAB to mainly field goals rather than touchdowns, but the overall performance is still not encouraging against an American Conference program.

Illinois will need to improve defensively, but if the Illini can maintain that "bend, don't break" mentality and continue holding teams to field goals rather than touchdowns against Power Four opponents, they will put themselves in a great position to compete.