Well to somehow single out Rakitic among the 4 regulars (with Arthur, Busi, Vidal) as somehow a singular problem with the midfield/team just isn't sensible, and I'll respond to an insult or out of whack post about a committed and effective Barca player, be it Rakitic, Busi, Suarez, Bob, Pique, etc, etc.
Now the statement below is just fine: "Every player has flaws, what matters is to use him in a role that minimizes them. And we do at Barcelona." You could even say Rakitic contributes to the slowness problems with Busi and I would somewhat agree--but it is equally on the latter as the former. Overall Rakitic is a major reason why we have a 9 point lead in the table, int he CL semis and in the CDR final. I would say at least one of the 6 most important reasons for why this year has been as great as it has been. Now it is time to give him plenty of rest outside of the 4 remaining critical fixtures.