On Torriera, it's hard to watch him play for Uruguay because he is behind Nandez, who has just moved to Europe from Boca, and Lodeiro who plays in MLS, among others. I know he's meant to be good but I really don't understand why he's only played 200 or so PL minutes this season and isn't starting for Uruguay if he is such a top midfielder. I've seen one game where he's put it all together, I believe it was against Spurs, and otherwise he's been short of something when I've seen him.
But moving on from that I don't really see that backline as being great. To me it's unproven, unproven, past his best, and decent but also coming off a bad knee injury. The less said about Chambers the better. Not sure I see Guendouzi as a box to box player but who knows he's still young. At any rate his defensive side is poor at this moment.
But the biggest problem with that set up is the slash between Lacazette and Aubameyang. Any system should start with getting those two in their best position up top. Unfortunately spending 72m on Pepe makes that hard to do. I like him but he's been average at best thus far and just isn't getting dropped. Playing Saka, as promising as he is, instead of one of that front two is not good management imo.
Last thing is I don't understand how a manager of that team could be hired without having a coherent plan about what to do with Ozil. Love him or hate him they made a commitment with the new deal and hiring someone who didn't have a plan in place for him is just another example of a lack of a plan. I just can't see where this team wants to go. And they're doing good things like signing Tierney, Guendouzi and Saliba so it is really a matter of just finding a precise direction I think.