Arsenal have "settled for fourth again" in the Premier League, according to former England defender Danny Mills.
The Gunners, who have finished fourth in six of the past 11 seasons, lost 3-1 at Chelsea on Saturday to fall 12 points behind the league leaders.
"Chelsea were just so much better all over the pitch physically, mentally," said Mills on BBC Radio 5 live.
"That mentality has to filter down from the top," he added, referring to manager Arsene Wenger.
Arsenal are third in the table, a point clear of both Liverpool, who lost at Hull on Saturday, and Manchester City, who host Swansea on Sunday (13:30 GMT).