Because he wants Barça to be unpredictable
Some of his statements:
Luis Enrique: "Busquets as attacking midfielder? We wanted more control. I think in general we played a good game."
Luis Enrique: "It was a balanced game, both teams had chances. Overall I think we deserved it just a little more."
Luis Enrique: "Goal Suarez wrongly disallowed? Could have decided the game a lot earlier, but those things happen in football..."
Luis Enrique: "The goal wasn't just luck. We work hard on set pieces and it was well-executed."
He didn't have a clear starting 11 at celta either, btw. He thinks that is good for the players and the team. So we'll keeping seeing those bizarre line-ups ocasionally.
I thought he'd drop that in Barça, but looks like he won't. No cb pairing, no midfield, players barely can gel and develop proper chemistry.
So basically there is no chance of him thinking of having a stable team that he plays regularly with little or no changes?
Nope. I think the guy lives and dies by the rotation. He would probably rotate the team even if we play a CL or Copa Del Rey final. Doesn't give two fuks about what's logical. Just goes by his own ways.
Could one of the reasons why his teams are known to start slow but eventually get better be because after a while the constant rotations forces everyone in the team to "gel" with eachother regardless of who is playing? That there is no fixed starting 11 (well apart from the 3 in front) makes it so that everyone have to play well with whoever is in the squad for each game, and after a while all the players just sort of know eachother and it starts clicking regardless of the lineup changing?
I don't know, just a thought.
There may in fact be a method to his madness, but rotations is one thing, changing the system is another. Against Sevilla he played Xavi-Rakitic-Busi but against APOEL he played Rafinha-Rakitic-Mascherano. Different players but the same system and it works well and will probably work well if Iniesta was in there instead of one of the AMs.