#2 A leaky defense that has not been fixed for years
"Attack wins you games. Defense wins you titles". This is a very famous quote in football that has revered throughout the years. Arsenal has some very good attacking players, with the forward duo of Lacazette and Aubameyang forming a lethal combination in front of goal. Despite their strength in the final third, their backline leaves a lot to desire
This is a problem that has riddled the club for many years and something Unai Emery has not been able to correct. The current defence is just not good enough to secure major silverware.
Their entire backline is suspect at best. New signing Berd Leno has made more than a few mistakes this season. At right-back Hector Bellerin, although an excellent player, is riddled by injuries and his backup Stephan Lichtsteiner is a 35-year-old player who is struggling to handle the intensity of the Premier League. Sokratis has had a fairly good first season in the center-back position, while Mustafi and Koscielny have had a year to forget. At left-back, Nacho Monreal and Sead Kolasnic are largely inconsistent.
Arsenal conceded a massive 51 goals in the Premier League last year. With such a leaky defense which lets in goals for fun, and with a severely limited transfer budget, you can only expect it to get worse.