We need to upgrade the human... the current version just doesn't cut it. Problem is, the aircraft functions just fine most of the time. But human beings learn skills by constant practice. When you do something often enough, that knowledge enters your reactive memory. That knowledge can then be used quickly and effectively with very little cognitive overhead, i.e. you don't have to think about it. When the aircraft behaves "properly" 99.99% of the time, that's the knowledge you have in reactive memory, because that's what you practice all the time. When an abnormal situation occurs, you have to reach into declarative memory, the knowledge that you learned with occasional sim runs and recurrent training or maybe just a briefing or video or from studying all of the ins and outs and peculiarities of the complex systems. That requires much more mental effort and time on the part of the pilot. Unfortunately, usually when that abnormal situation occurs, time to think is exactly what you don't have. In those situations where time is short and decision-making is critical, human beings are hard-wired to fall back on reactive memory... the reflexes that are trained to respond to all of those "normal" situations encountered most of the time. And those reflexes can sometimes be the wrong ones. Thus, the whole system is set up to make pilots fail at precisely the time when they have to perform. A good reference for this subject is "The Limits of Expertise: Rethinking Pilot Error and the Causes of Airline Accidents", Ashgate publishing.