Pierre-Emerick Aubameyang scored each goals because the Gunners twice came from on the support of to shut away from Carrow Avenue with a level on Sunday afternoon.
In truth, it's not just Mustafi as Chambers, Luiz, Sokratis and Sead Kolasinac just aren't good enough either and with the hopeless Granit Xhaka "protecting" them in midfield, we've got no hope of keeping clean sheets.
Martin Keown says Freddie Ljungberg needs to change the mentality of the Arsenal players.
"In the beginning I saw a lot of things we worked on in training, but we need to score goals and take the lead". We tried to find more confidence in winning games. "Whether that's me or someone else as a coach, I don't think that matters so much".
Pukki also had a chance to win it for Norwich while at the other end Arsenal substitute Lucas Torreira nearly claimed victory for the Gunners in stoppage time.
"We have problems in transitions, and that's what I will try to fix", he said, adding that he wanted Arsenal to have more possession and deny their opponents as many chances to shoot.
"I think the mood is always good". I think Emery did a very good job for one-and-a-half years, but the club chose to change the manager and something in the team.
Ljunberg has himself said that he is not yet ready to take full charge of the club as he thinks he is new to the trade. We haven't fitted one yet with a club suit but I can't really see that being a discussion. We will try to follow him and give the best for him.
On why he turned to 18-year-old striker Bukayo Saka, rather than record-signing Nicolas Pepe in his search for a victor, Ljungberg added: 'Pepe is a very good player, but what is done in training and what I see every day is how I judge it'. "I need to develop the game plan, how we want to play football".
"By that - and I am obviously speaking as an ex-defender here - I mean a realisation by the players of what is required when they are not in possession, and also a willingness to actually go and do it too".