You have to play who you have on your roster. I personally think Rakitic should play about 30% less, not because "he sucks" but when he is tired it compounds his weaknesses and we really need him to be the best he can be come april. But who do you suggest we play more? More Vidal? More Coutinho in midfield? Or is it the eternal hope of Alena or Orial or Puig--all of these are not 1/3rd of player Rakitic is at the moment and only the most homeristic views think they are ready for the biggest matches of a football's season.
Of course I pulled the 1/3 number about of nowhere, for effort. Turns out transfermarket would have it more like 1/4.33 in player valuation.
Taking the 1/3 or 1/4.33 out of it--tAIN POINT is in crunch moments, intense matches in champions league or CDL today that will go a long way to defining season success, no I don't think Alena is ready. I don't think he is ready, I am pretty sure EV doesn't think he is ready, and sofascore/whoscored/squawka scores show we have better options. From my eyes at the moment he is too loose with his touch, and physically not ready vs 1st rate opposing defenses, high press, etc. Oriol and Puig, way, way not ready.
Busi, Arthur, Rakitic, Vidal and Countinho--they are far more seasoned and skilled for those moments in the midfield at the present.
Alena should get some league starts, yes, he is progressing and the pressure in league isn't so great with nice cushion. Maybe he can get spot duty in those bigger matches pending those matches being well in hand (or more playing time if we get hit by injuries and have no other options). But he has to show a lot more composure to play in the crunch time, season defining moments, we have 5 better players at the moment who can play in on or more of the midfield spots. He is not ready for Real or City or Liverpool or Atletico, etc. Alena has a good chance to be ready for those moments in years to come, Puig and Oriol, who knows but should not be counted on yet as future Barca rotation players.