Talkdownman
The thought of my FO's dealing with MP, prop RPM, mixture control and using the occiliscope to find if the plug out on cylinder 6 is on the right or left mag is not an appealing one. For that you need a flight engineer !
It's a bit like asking him to fly a PAR, however these people have an encyclopaedic knowlage of the FMC........... After all that flys the aircraft, or so they tell me.