Idk, I've developed a system to determine how much i can trust each individual.
Over time i observe the behavioral patterns of an individual to somewhat determine what's their strong side or what interests they have. Based on that i can figure out how much i can trust them and with what tasks.
If it's something they're good at/interested in and they have something to gain from it and the overall mistake rate is low. I can trust them fully.
Now if it's something they're not that interested in, theres nothing to gain from it and they have a high mistake rate. Then i cant really trust them with said task.
Of course it's not full proof, anomalies/surprises can happen, but those shouldn't be taken into account due to very low chance of happening.
Surprises or a change of schedule/unplanned activity, basically spontaneity is guaranteed to mess up the rest of the day.