Hi,
aitren:
the modern/current airplanes are hugely more complex
And despite this immense complexity the basic is the same:
When the plane degrades (by any reason) you need:
1) Feel it
2) Aviate it (the same for all models)
And this requires a SIMPLE THING: Known your machine in it's basic config.
may not be obvious to a casual observer
A Professional knows everything related and involved in his mission,
specially when Murphy Law acts.