Chelsea boss Antonio Conte hints there'll be crunch talks today at training after Saturday's thrashing by Arsenal.
Conte stressed a period of contemplation is needed before fully assessing his side's performance.
"I think we must have time to reflect a lot," said Conte. "It's important for me and the players to reflect.
"After this defeat, it's normal for me to not sleep – not only for one night, but two. When I don't sleep, I reflect. And it's important to reflect.
"I'll watch the game again and I need to find the solution to improve very soon because we played a very bad game.
"When you want to win you must have a good balance when you attack and when you defend. I think this is the right way if you want to win.
"It's important to work together in defensive situations and in offensive situations. We must work together. We can improve a lot and it's important to understand this and try to work together."