JD-EE:
MurphyWasRight, sensor_validation's words led me to think "he" referred to the captain rather than PNF. But, I note further on in sensor_validation's remarks he says PNF was unhappy with what PF was doing, implying he was more alert than the PF.
I won't let you guys have it both ways.
The only "fact" is that the PNF (recently asleep) was calling the Captain, whether he was seriously unhappy or just following protocol for any unusual situation is not mentioned in the report.
I would suspect it well could be both, however the point remains that he may not have been at the top of his game when things went wrong and thus less likely to be able and or willing to offer suggestions or intervene.
If I understand correctly he could have taken control at any point but did not utill much later.
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As to Captain taking over the controls, not likely since his body was found, hence not strapped in.