Chelsea returned to winning ways against West Ham following successive losses with Frank Lampard admitting there had been "tension" leading up to their success at Stamford Bridge.
The Blues lost recent games at Everton and Wolves to fall down the table.
Heavy investment was made which saw expectations heighten in west London although Lampard has been keen to play them down in light of their recent defeats.
The 40-year-old concedes it is on him to control the mood within the camp but has cited the unique nature of the season as a huge challenge.
He told Sky Sports : "The game was hard and we started really well but for a period in the second half we did not get much of the ball.
"You are delighted when you get the second and third goals, West Ham can hurt you.
"The season is looking different to every other season, for whatever reason. It is hard for a club with the expectation and squad we have.
"You get a few challenges when you lose a couple of games and I have to be the one to drive it, there was a bit of tension going into the game.
"We showed graft without being beautiful it was a good result."
Lampard also defended his decision to start Tammy Abraham and Timo Werner ahead of Olivier Giroud.
The Frenchman has been far more prolific recently that Chelsea's other forward options.
But the Blues boss insists the World Cup winner was left out based on the type of game the Hammers would pose.
"Olivier Giroud has been playing well and scoring goals," he added.
"You have to look at the opposition and they have different attributes.
"We did not know whether they would play a back three or four and with Tammy Abraham's natural ability to move in behind it would have suited us better today.
"We judged it on the oppostion and Tammy came up trumps, Oli produces whenever he plays."
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