You could argue that our defence is decimated. Jagielka, Williams and Baines have all reached the door of the glue factory at the same time. This should've been addressed in the summer.
This is the real issue. An attack without Lukaku and Barkley, yet adding the players we have should still score goals, but Koeman clearly couldn’t play outside his system that was reliant on a true 9. Unsworth was a temp so no one followed his orders.
But a backline without Coleman and Mori hurts. Baines falling off a cliff is unfortunate. Williams showing up out of shape and completely past it was surprising. Jags has just continued to regress. Keane was good until he got hurt. Holgate has been shockingly bad and can’t be trusted. JonJoe has been okay at times. Martina can’t defend. To not buy a CB and LB was the dagger. We have no alternatives. No manager can fix that.
Although, if the team was fit and played a different style, you could get away with Besic playing CB or could use our glut of DCMs to better support our defense. But it’s hard to hire someone like Tuchel in December and ask him to change our entire system, get players truly fit, retrain our younger players, and expect to see improvements until after January.