Yeah, we can't bench him against bigger sides especially against teams that press the shit out of us.
Rakitic and Busi without having an additional press resistant CM next to them will struggle badly especially in Rakitic's case where he becomes a turnover machine.
Even though, each player has pros and cons and matches where he thrives and where he struggles with his set of skills.
Pacey wingers are usually way better with more free space to run to.
Arthur is good in matches like against Roma, where the opponents are pressing us and where we struggle to get the ball out of our half.
On the other hand, in the 2nd half against Espanyol where they defended with 11 players and where we had 10 field players in their half, Arthur's strengths are not useful.
We didn't need to get the ball out of our box, we had possession all the time no matter what and we didn't need to pass it from left to right in "controller's fashion"
2nd half against Espanyol was a moment for Busi or Raki plus 2 attacking minded, creative, risky CAMs like Coutinho, Alena, Rafinha or even Denis Suarez or even some 424 formations.