Frank Lampard feels Chelsea can emerge as true Premier League title contenders if they can find some consistency.
They sit four points off leaders Arsenal after the first 12 games of the season, level on points with second-placed Liverpool, but have not truly fired on all cylinders since Jose Mourinho's return to the club.
The Blues showed flashes of their old brilliance in the 3-0 win over West Ham on Saturday, when Lampard scored twice, but the veteran midfielder is demanding much more from his colleagues.
"Nobody has caught fire except perhaps Arsenal and we are in touching distance of them," Lampard said.
"We are in a position where we can say 'Yes, we want to improve and challenge to win the league'. I think we are in a good spot to do that.
"The talent in the squad is there and the consistency and spirit and desire and mentality has to be there. We have to do that every week. If we can do it over 10 games and put a real run of wins together then maybe we will scare other teams.
"But at the moment, everybody is in the mix and nobody has pulled away, so we have to try to put that run together. We have to make sure as a squad we have to work towards one goal.
"Our away form has not been great. That is probably what has kept us off the top of the league. If you are going to challenge for the league you have got to win away from home regularly. We need to start doing that."