They have won two of their opening five matches, against Brighton and Hove Albion on the opening day and Crystal Palace earlier this month, with their only defeat coming at the hands of defending champions Liverpool.
On Saturday the Blues played out their second 3-3 draw of the season as they squandered a two-goal advantage to share the spoils with visitors Southampton.
Individual mistakes have plagued performances this season, with the Saints' second goal coming as the result of a calamitous mix-up between Kurt Zouma and under-fire goalkeeper Kepa Arrizabalaga.
In fact, of the nine goals conceded by the West London club this season, five were directly caused by errors from players.
According to the Premier League's official website, Chelsea's Spanish stopper has been responsible for three of these crucial errors - more than any other player in the division.
Club-record signing Kai Havertz was also at fault during this weekend's encounter at Stamford Bridge, losing possession to Danny Ings who duly slotted home Southampton's opener.
Meanwhile, a poor touch from Thiago Silva during the first half of the draw at West Bromwich Albion allowed Callum Robinson through on goal to put the Baggies 2-0 up.
Lampard will surely be less than impressed with the carelessness of his players, having forked out well over £200 million on transfer fees alone over the summer in an attempt to shape his squad into title challengers.
Points are not necessarily being lost due to poor management but from silly and preventable mistakes, which will be the cause of much frustration among Chelsea's coaching staff.
Their midweek game will provide a break from league action as they welcome Sevilla to the capital in the Champions League, before their Premier League charge resumes with a trip to Old Trafford next Saturday.