The pilots are a potential hole in the cheese!
Or are you one of those people who thinks that pilots are little short of superhuman and whose role in life is to sort out other peoples' screw ups?
If you are going to comment using Jim Reason's model please, at the very least, understand what the holes mean!
What arrogant guff. Yes the pilots are a potential hole in the cheese but on this occasion they weren't were they? Yes they missed it on the walk round as many before them have, but when faced with the airborne problem no further 'cheese holes' were lined up.
Go back to flight sim!