And after their latest defensive horror show, Joey Barton has put the boot in by accusing the Reds boss of talking "BS".
The Merseysiders have a terrifying attacking quartet but have struggled at the back throughout Klopp's two-year spell at Anfield.
Speaking last month, the bespectled German defended his approach to the game, insisting he “could write a book on defending in just two hours.”
But Barton, who has been regular critic of the charismatic manager, says he has yet to see evidence of that claim.
The outspoken former Premier League star told talkSPORT: “Two weeks ago he [Klopp] was writing a book on defending in two hours.
"Well, clearly none of his back four and the ‘keeper have read that.
“He has also said he is the best man for the Liverpool job, there is nobody better in the world to manage Liverpool.
"Well, if you polled Liverpool fans this morning there would be huge doubt put upon that.
“You have to take anything Jurgen Klopp says as BS! I was one of the first to say I ain’t having him.
“The mistakes they are making at the back, the attitude to defending, it makes me think: 'what are they doing during the week?'
“They have a great forward line. [Mo] Salah has been a great signing.
"[Philippe] Coutinho they managed to keep hold of, but some of the decision-making at the back is criminal.”
Liverpool have no Carabao Cup fixture this week as they were knocked out by Leicester in the last round.
Their next fixture is not until Saturday (3.00pm) when they host a Huddersfield side to Anfield, hot off the back on their historic win over Manchester United.
