I've only watched it this afternoon, but it was very like watching a team of the past (50's/60's). Once again it was often 2323, with Sagna Yaya and Fernadhino, ahead of Stones and Kolarov, then Silva and KdB with a half of the pitch to control each, then the three up front. Best of all though, its so flexible, and can easily convert into 352, 442, 433 without having to change positions. It was a surprise to see it fit Fernandhino so well on the left, but the options it gives going forward are amazing, not to mention that was probably one of our best defensive performances of the season too. As you say the balance is key, he seems to have found the formula that works with these players.
Willie - 7 (1 outstanding save with his feet)
Sagna - 7
Stones - 8
Kolarov - 8
Fernandhino - 8
Yaya - 7 (the early booking stunted him a bit)
Silva - 9 - outstanding and my MoM
KdB - 8 best he's been in a while
Sane - 7 (attacked well but gave the ball away carelessly too many times for me)
Jesus - not marked
Sterling - 8 great contribution
Aguero -7 started slowly, but improved second half
Otamendi - 6
Nolito - not marked
If this can be kept up through all these games, we will challenge Chelsea, the key word is IF, its a big ask with CL on top.