I recently did a stand-in simulator as First Officer for a colleagues Command Assessment upgrade. The first thing that happened was that they failed the AT. Didn’t bother me much because the 737 is the first aircraft I’ve flown with AT. But, when you are working hard, it is interesting that it does take a bit of capacity away.
When my colleague took over the flying again I called ‘approaching target speed’ as we were decelerating towards the (minimum clean) speed and his hands were not on the Thrust Levers. All normal cockpit CRM etc, but in the debrief the assessors told him ‘he saved your bacon there.’