2. Solve the midfield conundrum

Arsenal's midfield, this season, has lacked creativity. On top of that, they haven't been of any help defensively for the back four either. This is down to how they are managed because the likes of Granit Xhaka, Lucas Torreira, Mesut Ozil, Matteo Guendouzi, Dani Ceballos and Joe Willock are good enough to perform consistently for a top-six side.
If Freddie Ljungberg plays a 4-3-3, the midfield should ideally include Joe Willock as a box to box midfielder, Granit Xhaka playing the deep-lying playmaker, and one of Guendouzi or Torreira, to link the defence with the attack, playing a pure central midfield role.
After everything Xhaka was put through, the Swiss international hasn't put his head down but instead, worked on his game and currently, he is Arsenal's best midfielder by a country mile. The 26-year-old was the only positive from the game against Brighton, and he has drastically improved himself since his dispute with fans a month ago.
On each of his side, either Willock or Ceballos (when fit) should be deployed because they can carry the ball forward and provide with an extra man in attack. On the other hand, Guendouzi should be the first choice for his composure with the ball, and his ability to draw fouls, make tackles and win back possession. Torreira can provide healthy competition to the likes of Xhaka and Guendouzi, or maybe can even bench them.
Arsenal's defence has received limitless criticism for not being good enough, but the Gunners haven't had any structure in the midfield, which often sees them getting caught high up the pitch during counter-attacks, eventually putting all the pressure in the world on the defenders.