3) Odegaard As The False Nine
One of the biggest issues for Arteta is that Odegaard is having to play too deep because of the lack of options in the middle of the park. The Norwegian is unable to affect the game in the final third of the pitch.
With that in mind, why not give him a free role as the false nine? It could allow him to move about between the lines and force Chelsea into adjusting their rigid system in order to make sure he is marked. That could also create space for others to exploit.