Chelsea boss Graham Potter explained throwing on N'Golo Kante into an attacking role in the second-half of defeat to Aston Villa.
It marked Kante's first game back since his hamstring surgery before Christmas.
Potter said: "Ruben (Loftus-Cheek) was getting space and we wanted a winger on there. N'Golo is a big player for us and we thought he could run in behind. I thought he did well when he came on.
"We need to manage moments better and the scoreline tells the story. We have to respond now, and we have a fantastic game on Tuesday night [against Liverpool] to put it right."
Potter found a positive in Ben Chilwell's performance.
He also said: "I thought Ben did really well and he gave us absolutely everything down that left side. He was unlucky not to score today, he attacked the backline really well. There were certainly positives for us but obviously it doesn't feel that way because we lost the game."
