Once, there was an excellent CEO who is stepping down from his corporation.
His in-coming successor asked him what is the secret to his success.
The out-going CEO simply passed him 2 sealed envelopes and said to him, "When you run into any trouble in managing the corporation. Open up the first envelope, that will help you. If you still run into further problem. Open up the second envelope."
So the new CEO runs the corporation and really within a few years, he ran into trouble in managing the corporation.
So he opened up the first envelope. The letter says, "For any misdeed or problem, put the blame on him (the pre-successor)."
That works like a charm and all appeared alright...
However, after a few more years, the corporation ran into trouble again and the CEO decided to open up the second envelope...
Upon opening up the envelope, the letter says, "Now, write 2 letters and pass it to the next fellow..."