Armory caretaker boss Freddie Ljungberg failed to inspire the Gunners to victory by tying 2-2 with Daniel Farke's Norwich City. Fans were expecting an exciting response from players after Unai Emery lost his job last week but couldn't see the radical changes they were looking for.
Arsenal were left behind after Teemu Pukki's shot defeated Bernd Leno by deflecting defender Shkodran Mustafi.
The German international was making his first Premier League season start in a show of faith from his new boss, but failed to impress in the early stages.
Arsenal were level in controversial circumstances as Pierre-Emerick Aubameyang had a chance to score a penalty.
Tim Krul halted Gabon's striker's first attempt but failed to stop the second after referee Paul Tierney ordered a resumption by invasion.
Todd Cantwell was on hand to lead the Canaries after a weaker Arsenal defense as the wingman had time to pick his spot in the bottom corner of Onel Hernandez's pass.
Aubameyang was the hero once again just before the hour when he threw himself from inside the box to level the score at 2-2 for his tenth goal of the Premier League season.
The result puts Arsenal in eighth place in the standings and without winning in eight games in all competitions.
Norwich remain second with three wins and two draws in their 14 games as Farke's men seek survival.
Arsenal player ratings vs Norwich – Premier League
GK: Bernd Leno – 7
Made great saves in the second half of McLean, who broke in the middle shortly after Aubameyang's second, suffered twice but was not guilty.
RB: Chambers of Calum – 5
He fought on the right side, in the absence of Hector Bellerin, when he again departed from his favorite central position. Booked for a foul on Hernandez.
CB: Shkodran Mustafi – 5
Arguably guilty for the first goal, after not closing Pukki, failed to replace Ljungberg's faith.
CB: David Luiz – 6
Relatively quiet game for the Brazilian as he tries to impress his new boss.
LB: Sead Kolasinac – 6
Got a good replacement for Kieran Tierney, who suffered a training injury, remains the second choice behind the Scotsman.
CM: Granit Xhaka – 6
It almost allowed Norwich to score a third after giving the ball to midfield, stable since returning from the cold.
CM: Matteo Guendouzi – 6
Failure to make his mark in midfield after an early challenge left him in need of treatment.
CM: Joe Willock – 5
Disappointing display of the young man after winning a match, replaced by Lucas Torreria after 70 minutes.
CAM: Mesut Ozil – 7
It didn't create much for Aubameyang or Lacazette in a quiet display for the former German international.
ST: Pierre-Emerick Aubameyang – 9
He scored two goals in another clinical display for Arsenal's top scorer, where they would be without him.
ST: Alexandre Lacazette – 6
Missing a golden opportunity to lead the team in the first minutes, had no chance to make up for their mistake.
SUB: Lucas Torreria (replacing Willock) – 6
SUB: Bukayo Saka (in Guendouzi) – N / A
SUB: Gabriel Martinelli (replacing Ozil) – N / A