Behind the scenes?

The air traffic chaos caused by the computer glitch that left the night (quiet) settings on when it was supposed to be switched off makes me wonder why this basic error happened.  On totaljobs.com, there was a glut of openings for air traffic controllers (within the job parameters I had set as I seek to move on from my current occupation), which makes me think that a slew of such professionals are to be laid off for not accepting pay cuts and thus are demob happy or their replacements are making the errors that all novices make when settling in to a new job.  Whoops!