#3 Need to sign a top quality striker
The signings of Ozil, Sanchez, Cech, Mustafi and Xhaka in recent years has not addressed the kind of player that Arsenal need. In every single one of these transfer windows, Arsenal's pressing requirement was a top quality striker and it still is. The club have pursued strikers, but not many elite ones come by for 40 million and one pound.
With the transfer kitty bagged from the sale of either Ozil or Sanchez, Arsenal can go all out for the cream of the crop – the likes of Pierre-Emerick Aubemayang, Robert Lewandowski or even an ambitious attempt for Antoine Griezmann.
So long as Arsenal learns from the mistakes of Liverpool and Spurs in reinvesting from the sale of a star player, the club should be in safe hands.