The Blues lost 3-0 to Sheffield United at the weekend to raise concerns about their backline but their boss is confident he can fix the issue.
The 42-year-old coach said: "In terms of defensively, there is a way that I want us to play and it's not gung-ho, it's not crazy.
"A lot of the goals are the balls that come into our box that maybe we don't defend right at that moment and that's something that has to improve and I feel I know the answers to it.
"Some of it is work and that's something we will see and it's part of the process we are in. I don't like it, I hate conceding goals but we have to work harder on it."
Lampard also feels that the age of classic defensive partnerships - such as John Terry and Ricardo Carvalho when he played for Chelsea - is over.
He said: "I don't think any team in modern football are going to say 'We've got that one defensive partnership'. You go back and talk about a John Terry and Ricardo Carvalho partnership, but in the modern day, I don't think you will find too many clubs to name the two.
"It's a difficult season and a demanding season, so I'm not saying I just want to pick two centre-backs because you need competition of probably four centre-backs within a squad and then you need them knocking on the door.
"You want to be able to say to players 'You are not doing enough,' or the two that are playing keep deserving to play.
"I don't think it's about just a partnership. Can we be more settled if we improve? Yes, for sure. Will it be just two players who are going to be your centre backs? I don't think that's going to be the case."