Duke has a severe turnover issue with a minus-6 turnover margin through two games and zero takeaways. Against Illinois, they committed five turnovers including a muffed punt in their own territory and a red-zone fumble by QB Darian Mensah. This ball security problem appears to be a recurring issue from last season.

After keeping the game close at halftime (trailing 14-13), Duke was completely dominated in the second half, being outscored 31-6. The team's inability to maintain competitive play for a full game and tendency to be 'architects of their own demise' with penalties and mistakes is a major red flag.

Darian Mensah showed both promise and problems, throwing for 334 yards and 2 touchdowns but also committing costly turnovers including a red-zone fumble. His connection with Andrel Anthony was effective, but the turnovers in crucial situations undermined the offensive production.

Duke's defense allowed Illinois to completely take over after halftime, giving up 287 yards and no sacks in the second half after a decent first-half performance. The inability to generate takeaways (0 in two games) puts additional pressure on an offense that's already turnover-prone.

Duke travels to face Tulane next, which will be a reunion for QB Darian Mensah with his former program. This emotional subplot, combined with Duke's current struggles with turnovers and road performance issues, could create additional challenges for the Blue Devils.