Hmmn..
Bring back flight engineers I say!
Even in my day any aeroplane leaving main base, and particularly coming out from maintenance was suspect. Since I was going to be flying in it, my checks were thorough. Sadly it was not unusual to find basic defects...panels unsecured or missing, a wrench in a thrust reverser door, avionics not operating. Perhaps the ground engineers knew that the E/O would have eyes like a hawk, and relied on his final checks of the aircraft servicability.
Fly by wire and glass cockpits are all very well, but computers don't do a flight engineers walkaround!
