2) The three-man defence could be worth persisting with
Arteta’s current centre-back options are not blessed with a great deal of pace, and playing them in a deeper-lying back three could well help get the best out of them. They limited Chelsea to very few chances last night and looked comfortable, for the most part.
If William Saliba does make a big impression next season, a return to a back four may be the best solution but, until then, the likes of Holding and Gabriel may be happier with more protection.