You're running an organization and under you theres this manager who has a 25 person team. He's this super strict, oldschool guy who gets mad if an employee forgets his tie at home or takes a dump longer than 5 minutes.
One day authorities discover that one of his team members is doing insider trading with mafia from the Balkans, while another is a drug addict and overdoses. The manager had zero idea and you are meeting with him today. You walk up to him and say: "hey, dont worry, you're doing a good job, I'm sure you would have noticed if he was smoking crack during the team meeting!"