A chief executive of a major company was scheduled to address an important convention, so he asked the press officer to write him a punchy, twenty-minute speech. But when the chief executive returned from the convention, he was furious. "What's the idea of writing me an hour-long speech?" he raged at the press officer. "Most of the audience walked out before I was even halfway through!" The press officer was mystified. "I wrote you a twenty-minute speech," he said. "I also gave you the two extra…