This game was almost like a controlled experiment to see the two Arsenals play the same opposition.
First, the horrid one with Willian at the helm, and then the exciting one with ESR enabling the likes of Saka, Laca, Auba, and Tierney to combine and play good football.
Nelson, Pepe, Willian, and Willock were all painful to watch.
Their replacements in Laca, Saka, ESR, and Xhaka were all solid performers.
Arteta has a personnel problem in his hands, not a tactical one.
