#3 Alexandre Lacazette shouldn't be judged so soon
Plenty of Arsenal fans were ecstatic when the Gunners broke their transfer record to sign Alexandre Lacazette, and naturally expect the world from him. However, the Frenchman is very much a striker who relies on his teammates to create a chance for him, one which he buries more often than not.
The supply of Danny Welbeck, Alex Iwobi, Oxlade-Chamberlain and Hector Bellerin are far more blessed in their legs than their brains, with plenty of Lacazette's runs being ignored. The Frenchman's success at Lyon was heavily dependant on the combinations he formed with teammates, and we will not truly see the best of Lacazette until January. Although there were flashes of brilliance - like when he hit the post.
Sead Kolasinac doesn't need any adjustment period though - the tank-like figure looked like a proper Premier League player through and through, and he could definitely augment Arsenal's attacking output at set-pieces.