I wonder how many of those 2900 hrs the PF had actually handflying and not monitoring? Not many I am sure and that is probably why he pulled up into a full stall at high altitude because he didn't understand he was in Alt law and had no stall protection. The second pilot in the left seat couldn't see what he was doing so got confused too. Then the captain comes up at the end and can't see what they are doing either with his limited time watching so can't see what he is doing with the SS. Why would any pilot at FL350 pull full back on the controls because he lost airspeed? All jets have loss of airspeed checklists showing proper pitch and power for weight and altitude. None say pull up to the stops. Boeings wouldn't let pilots do that. Unless both pilots were incredibly stupid.