Not agree
I am not sure "everything ready" FO work is a best one. I think the most important for any pilot in any position is TO BE AWARE AND KEEP THE OTHER ONE BE AWARE. Even in case you loose your awareness, it is safer to tell it to the cpt than pretending everything is all right.
Captains instruments setting beffore the flight IS DEFINITELY NOT the FO´s responsability, sorry guys, but who says this should have a look into any FOM. How can one be aware when the setting was done by someone else (not to mention someone less experienced..).
Or imagine low hour FO making mistake in the preflight performancecomputation. CPT only comming to the seat and not even interrested in the V speeds, just copying them to the FMC (which I have experienced by myself!) is the safety risk. Such a crew then represents "two single pilot operations", but this is deffinitely not what the airline pilots are drilled for.
You may not agree, but this is my experience.