Lucho messed up, and that needs to be said. He started with the plan and that plan is f...ing stupid. I've seen that and became convinced by that early, after the game on La Rosaleda. The problem is he made his squad and bought the players for that tactic, playing the midfielders as cover for the fullbacks. Once we get rid of that tactic, we simply lack viable option for two positions. The DLP, or creative midfielder, the one who needs to play next to Mascherano, and the RW.
For me, Rakitic next to Mascherano is going to fail, because Rakitic is not a great playmaker. Busquets might be better there if he recovers, he's still young. So, for me, it's Mascherano - Busi with what we have now. Mascherano - Fabregas would've been the best pair, but Mascherano - Busquets comes pretty close. Please, no Mascherano - Rakitic. That pair is not going to create anything.
Now, the RW problem, because after the sale of Alexis, our right wing has became a problem. We simply rely on Alves to cross the brains out of every ball that is distributed in that zone. Pedro there? Could work, but it's a downgrade from last year. Massive downgrade that is.
I'd go with 4-2-3-1, the only system that can protect the backline. And that system demands a RW with good workrate, and more effort from Neymar. Messi doesn't track back. Suarez playing as a 9 won't either. We can't afford 3 players to do that.
Ths is the best we can do with the current squad. But I can make a better line-up with last years players. That's also on Lucho.