So in summary, you randomly guess that all the players from La Liga were his idea? Bony looked very much like his idea tbh, he is the one obsessed with playing 2 strikers and he's the one who seems to always want a big man alongside Aguero. Bony doesn't look like anything Txiki has signed before, it would be very odd for him to think that Bony is in keeping with the philosophy he's put in place throughout the club. (also, Pellegrini does seem to fucking love him) Again, all guesses though, I'm sure that there are a lot more people involved in signing players than just those two as well, it's impossible to know who was really who's idea with the odd exception (Caballero and Demichelis)I don't know how exactly decisions are made. My sense is Pelegrini doesn't have free reign to get whoever he wants. That's my sense. Some who dislike Pellars or realize he is the one leaving, would like to believe he asked specifically for all these players. That way, he gets the blame and since he is leaving we are good now.
If I were to guess, I'd say he pushed for Demi, and Caballero. Possibly Negredo, Navas and Otamendi. My sense is that with players like Bony, Delph, Fernandihno, Fernando, Mangala, Jovetic, Sterling, DeBryune E.t.c. He was more of a rubber stamp of what Txiki and Ferra had already put together.
Again, that's my sense of it. I have no factual basis for this. Just speculative deduction.
My understanding has always been that DoF's are more about the long term acquisitions, whereas the manager requests players for the short term, but who knows.