“There was a lot of criticism for the manager, when you have a set of bad results and people say he hasn’t got a clue, what was the plan,” Carragher told Sky Sports.
“Mikel Arteta had a plan, we studied it this morning, it hasn’t worked, maybe it was a touch of naivety, but when you play against Chelsea, there’s a lot of talk about Lukaku but that’s not the only problem, it’s how you deal with their system. A centre-forward and two number 10’s, with wing-backs who play as wingers.
“Holding’s job was to look after Kai Havertz, Mari was in the middle with Lukaku and Mason Mount was deeper with Granit Xhaka. They almost went man to man, maybe a touch naive.
“You see them sticking with those men and, when the ball goes wide, Kieran Tierney’s job is to get out to the full-back, Reece James, and Xhaka’s job is to get into a left-sided centre-back position, almost a back three.