I personally believe Rafa would never be able to go with the pragmatic approach he does at LFC if Gerrard wasnt in the side. Rafa would have to adopt a more attack minded side together and not lay much of the emphasis on defending and working without the ball shutting players down.
Simply if Gerrard didnt play in a Rafael Benitez side under Rafa's pragmatic approach we would be scraping to fourth, as we're nowhere near clinical enough, creative enough. Take Gerrard out of the side and we'd have racked even more draws this season than we have.
This is where I still dont think Rafa has found the right balance between defending efficiently, and attacking fluently breaking teams down. We find ourselves effective at one and toothless at the other, take Gerrard already out of an inefficent attack and I believe we'd struggle for fourth.
Mascha, Alonso, Lucas, Kuyt even Riera arent game breakers and although Torres is, you cannot rely on him only and he needs a creative supply line to feed off.