A CEO has taken on a new job, and the outgoing CEO says to him, "Sometimes you'll make wrong choices. You will. You'll mess up. When that happens, I have prepared three envelopes for you. I left them in the top drawer of the desk. The first time it happens, open #1. The second time you mess up, open #2. The third time, open #3."
For the first few months, everything goes fine. Then the CEO makes his first mistake, goes to the drawer, opens up envelope #1, and the message reads, "Blame me." So he does: "This is the old CEO's fault. He made these mistakes. I inherited these problems." Everybody says, "Okay." It works out pretty well.
Things go fine for a while, and then he makes his second mistake. So, he goes to the drawer and opens up envelope #2. This time he reads, "Blame the board." And he does: "It's the board's fault. The board has been a mess. I inherited them. They're the problem." Everybody says, "Okay, that makes sense."
Things go fine for a while, and then he makes his third mistake. So, he goes to the drawer and opens up envelope #3. The message reads: "Prepare three envelopes."