Everton must sort out their inconsistency, according to Ashley Williams.
The defender is set to take on Swansea for the first time when they play Everton this weekend.
Everton host Swansea City this weekend and it will be the first time Ashley Williams has faced his former side since making the move.
Romelu Lukaku, Ashley Williams and Idrissa Gueye are among those appearing in televised qualifiers.
The Saturday teatime clash sees Ronald Koeman's Toffees head to Stamford Bridge to face in-form Chelsea.
Wales captain Williams joined Everton from Swansea City over the summer and is enjoying working under his new manager at Goodison Park.
Romelu Lukaku has netted seven goals for Everton so far this season.
Having moved to Everton in the summer, Ashley Williams has formed a strong partnership with Phil Jagielka.
Swansea City are struggling for results, but the spark Modou Barrow brings on the flanks could be the key to a turnaround.
Alfie Mawson made his Swansea City debut in the 0-0 draw with Watford.