Chelsea boss Frank Lampard concedes they need to improve their defending after a first season in charge.
The Blues let in almost 1.5 goals per game on average in the Premier League and finished with the joint-worst defensive away record.
"The numbers don't lie," admitted Lampard. "We're trying to play a certain way. I know the teams now at the top of the game - Liverpool and Manchester City - have been through similar periods in the early stages of their managers being at the clubs so it's a work in progress for me.
"I can't shelve it in another direction. We have to work defensively as a group but some of the individual errors we're making have cost us goals and they can't be there if we want to keep moving forward.
"We've had a good season but there are areas to improve and defensively of course we have to improve."
