The important thing was like any other aircraft with automation, if its not doing what you want it to do then intervene and make it.
Not too long ago in the sim saw an experienced crew fail to notice one throttle of the autothrottle had failed to increase thrust when it was supposed to. As the aircraft was on autopilot locked onto the ILS neither pilot noticed the split throttles for at least a minute. One engine 75 percentN1 the closed throttle at 30 percentN1. The control wheel well over to one side to counteract the asymmetric thrust. When the problem was finally seen by the captain he assumed closed throttle meant engine failure and so he called for the F/O to action the engine failure checklist. Nothing wrong with the engine of course. Just then the autopilot gave up the ghost and the aircraft slowly rolled to 90 degrees bank and dived in from 1500 ft . The F/O never saw what was happening because his head was down in the QRH. He had just found the right page in the QRH and was quite upset he never got to see the crash because he was still flicking pages. He was called the PM or Pilot Monitoring. He wasn't very good at that.