Re: I'd guess along the lines
>On the flip side - this is pretty much what drills are designed to iron out
Right. Which makes the idea that
"The decision to run a no-notice live drill on a shift change is also met with raised eyebrows. "
seem a bit daft. They had problems with their system that this drill uncovered - some of them sound like problems they might have predicted but still it's better to know about them than not.