Lucho did not play Iniesta because of fitness after the long injury. The midfield is nowhere near as good without Iniesta.
If Lucho was happy with the way either Rak or Rafinha have been playing recently, then one of them would have started instead of the experiment. Playing both Busquets and Masche had the advantage of strengthening the defense, shutting out a hot Valencia team at home was excellent.
Rak started off this year great, but has been looking a lot more ordinary recently. Rafinha has not been looking like someone who should play much for this level of club. Rodrigo was clearly the best midfielder.
The players make the coach look good, or look silly. Xavi has been better this year than last, but the other midfielders in front of the DM have not been great.
This game had the best goalkeepping I have seen this season. Both Alves and Bravo were unworldly. Great game, Valencia played fantastic but could have used one of the Barca superforwards.