The Frenchman believes there's still significant work to be done, with the squad still needing to grasp Conte's philosophy.
Desailly told the London Evening Standard: "I'm very pleased to see that the players have committed to their talent.
"Now we have to see if the philosophy of Conte will be digested by the players in the coming weeks.
"In the meantime the players are showing the desire Conte wants.
"But we still have to see how well they grasp his ideas in the future."