It's never all on one player, but DJ is the bulk majority of the problem and creates many of the other issues. He was bad fundamentally as a freshmen too if we are being honest go look at his OT int that was a flash of the 2021 season to come. Dear in the headlights and bad footwork.
I chalked it up to Tony Elliot and shoulder injury in the ND and BC game. He looked average throwing vs BC too as a freshmen. Thought the flashes of greatness were a sign of good things coming and assumed he'd develop and improve. Well low and behold he never got better.