The Blues were outclassed by Arsenal at the Emirates Stadium on Saturday evening, and Conte blasted his players after the defeat.
"We are a great team only on paper, not on the pitch," Conte told the media after the game. "I prefer to be a great team not only on paper but also on the pitch. The pitch is the truth. The pitch speaks.
"The pitch is the most important thing for us: not the words, not on paper. We must work to change this. We must work a lot".
Chelsea have got off to a number of slow starts this season. Against Liverpool and Leicester they conceded two goals in the first half and were two goals down after 15 minutes on Saturday against Arsenal and Conte says he needs to find a solution to the Blues' leaky defence.
He said: "I have to solve the situation The situation is that, every game, we concede minimum two goals. Two at the back, three at the back, four at the back, I don't care. I just have to solve this".
Chelsea won their first three Premier League games but have taken just one point from their last three outings.