Originally Posted by
BoilerUP
I would have assumed the CA would be flying the aircraft after a catastrophic engine failure and depress, and the FO would be PM manning the radio.
Why would you assume that? After the initial event, a very common CRM technique would be to hand off the flying and radios to the FO and allow the Captain to "battle manage" more easily. Gives him a chance to coordinate with FAs, Dispatch, medical initially. Maybe he picks back up on the radios when the situation allows.