Treg: you've got me on that..bang to rights. I apologise. My inference was that there is of course - dialogue and 'team effort' but the buck stops with the Captain, not the cojo.
Skadi: Like Hummingfrog - many years ago when I flew the Queen of the skies, we did practice flying double manual with one pilot!
We set both throttles to a gentle descent setting on mega long finals and flew it onto the runway.
It's not the end of the world. Single comp failure was a walk in the park by comparison.