#3 Shkodran Mustafi and Petr Cech look like wrong buys
If there were holes on the football pitch, I am sure the duo would want to find one to hide from the fans. The German defender has been incredibly poor with his recent performances and ought to be dropped from the starting lineup soon.
Mustafi is not alert enough in his games and unsure of his surroundings. Although there are some positives in terms of his tackling success and aggressiveness against opponents, the German does not look like the man who can bring any success to Arsenal's backline.
Arsenal fans would certainly be expecting a lot from the former Chelsea keeper who joined the Gunners in 2015. Unfortunately, he now seems like an incorrect investment for the North London club. The Czech Republic goalkeeper has conceded 49 goals in 36 matches which is totally unacceptable if the Gunners want to compete for the title next season.
Arsenal will have lots of work to do in the summer in order to find renowned replacements.