Yeah, I'm thinking, if Mari has a decent range of passing on him from the left side of defence, and if Luiz can shower the passes around from the right side, then do we need a midfield quarterback like Xhaka sat in front of them? Or can we go with someone a little more dynamic?
(To be fair to Xhaka, I actually think he's been decent over the last month - this is more about having the scope to add another dimension to the team instead of doubling-down on the same option.)