The improvement in AB since last Autumn has been pretty major.
I suspect that may have been down to voices behind the scenes sternly suggesting him to change formation. I should think that coupled with Roberts playing out of his skin for large parts of the season are the two big reasons.
Butler’s insistence on playing that 5 at the back woeful formation and the huge loss of points is what will cost us. Signing Beck didn’t help either. Beck would suit a team who played two strikers and width with plenty of balls in the box, but Butler signed him despite him not even suiting our style of play.