@Barking: I'm not sure if you are agreeing or disagreeing with me! However, yes, this is what I meant - the people with final responsibility for ensuring that the aircraft are safe are failing. Whatever the reason, it is negligence on the part of all, from the airline CEOs to the people on the ground. What proportion of this collective negligence needs to be allocated where is for discussion, but the fact is unchanged.
Like you, I see fatigue in a lot of recent incidents. A relevant question, though, is whether technology (micro-switches or whatever) could help to reduce the impact of fatigue.