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Risk management's strength or weakness lies in the extent of the professional training that the relevant personnel possess, and whether the preliminary investigative work has been done with near-perfect meticulousness and caution.
However, clearly, the incident involving Gu Nuan was a complete surprise. The relationship between the three members of the Gu Family and Aunt Qiu had always been poor.
Nevertheless, according to the slightest clues, they actually could have noticed something when Aunt Qiu was hesitating about approaching Gu Nuan. This was indeed an oversight.
An oversight before the fruits of victory were secured, leading to the whole endeavor crumbling down.
For professionals, this is an unforgivable mistake.
"You might say she was an accident, but, this accident should have been noticed."