That is how I looked at it as well. Gave the ball away once or twice. Something he didn't do on Saturday, and not once in that cameo against Juve. I've been physically at the last 3 games and the discussion around Yaya and the midfield has been going for a while now.
I've paid a lot of attention to it this week and it's a question/problem I can't answer
Yaya is miles better than any of the other 3 in terms of possession and how he recycles the ball, and would generally bring the midfield together.
The other 3, certainly Delph, give the energy. From what I've seen I think to accommodate Yaya then it's one of Silva/Sterling/De Bruyne that doesn't start because I think moving forwards in a 4-5-1 we need a combination 2 from Delph/Fernando and Fernandinho sitting behind it. Personally, I don't think you can drop Silva or De Bruyne when fully fit. They are both better than Yaya.
I'm aware that is a contradiction, and I guess what I'm really saying is that Yaya is the 4th choice CM if we start Silva and De Bruyne.
I think Delph should now be one of the first names on the team sheet. Didn't think I'd say that 4 months ago