What did we make all these improvements in midfield for then?
Both Arthur and Coutinho need to start FFS.
Arthur needs to start only in the mind of delusional fanboys. He's a 21 y/o player who just arrived from the Brazilian league and has multiple players ahead of him which are much more experienced and simply better. Seriously, throw him in there and after the rose-colored glasses wear off people are going to sh*t all over him just like with multiple guys before. Developing him slowly is exactly the smart and right choice.
Coutinho on the bench is surprising but not completely inexplicable considering his prominent role during the WC. He'll be starting soon enough. Also, what is the ‘why did for upgrade or midfield then' stuff you're talking about? We certainly didn't upgrade it to be able to win against the likes of Alaves. Or don't you remember how dominant we were last year against smaller clubs, with Rakitic and Sergio? With all due respect, if we don't win today then it's because we were playing crappy football, not because the starters weren't talented or good enough to win.
We improved our depth and we had to replace Iniesta. We didn't buy Arthur or Vidal to be starters out of the gate, nobody in their right mind believed that.