Bournemouth fought back from 2-0 down to get level before Fede Chiesa jumped from the bench to score on 88 minutes before Mohamed Salah wrapped up the 4-2 win with a final goal of the night.
Carragher fumed on Sky Sports afterwards: "It is unbelievable. Arne Slot's made those changes to make sure things like this don't happen. Fantastic from Semenyo - but Liverpool have had this problem.
"How many players were ahead of the ball - maybe eight players - when they were winning 2-1? That can't happen. It's absolutely shocking at this level.
"For Semenyo to run that far and get his shot away is incredible - but where Konate is going? He had a really, really poor night tonight at centre-back.
"That is not right. It's not. It's not only game on top of the Community Shield - but I've watched enough football in my life. This idea that everyone bombs forward, it's not for me. I don't like it."
Losing control
The former Reds defender also said: "At no time last week in the Community Shield did I ever feel Liverpool were in control of the game. You can draw 2-2 with Palace, that can happen.
"But it's how easy Crystal Palace could get at Liverpool, how easy it was tonight. In the first half, Bournemouth should have been at least 2-0 up at one stage.
"There is definitely a problem that Arne Slot has to solve. People say 'they need a centre-back'. A centre-back doesn't fix that. He just takes Konate's place.
"It's about the make-up of the team with two attacking full-backs and a number ten who more interested in getting on the ball than defending like Szoboszlai was last season. If Liverpool continue like that, I don't think they will win the league."