The Reds' former striker has given a detailed breakdown of what the Anfield side are missing at the back.
Heskey insists Liverpool have lacked a leader at the back since Jamie Carragher retired - and says it is costing them dearly.
Indeed, the former Reds striker thinks Brendan Rodgers needs to invest heavily in the January transfer window in terms of a commanding central defender and another goalkeeper.
"I was reading recently that Gary Neville said they should give [Rodgers] him some more money and splash the cash. He’s just splashed £100 million - he’s got to work with what he’s got," Heskey said during a Q + A with Goal.com readers.
"He’d love to strengthen at the back and get another goalkeeper and a striker. Liverpool are fairly strong in midfield. A commanding central defender - they haven’t had that since Jamie Carragher retired really.
"He was the person who really talked them through it, he was a leader back there. It seems like at the back it’s every man for themselves - ‘if I’m doing my job I don’t need to worry about the others.’"