When captain entered the flight deck wouldn't be an appropriate action to ask kindly Bonin to leave the seat and take over the controls? Would he save the day?
Where he was seated the captain had a a panoramic view of all the instruments
In the CVR .. one answer of the captain is
"I don't know"
I do not think it would change something if the captain had taken the place of Bonin when he arrived in the cockpit
Amazing .. but that day three experimented pilots had a bad day at the same place and the same time
A statistical challenge ?
Not so much
Statistics prove that unfortunately this happens often