This is not my story. I read a lot of it in Peter Drucker’s book, Adventures of a Bystander. It’s the story of Nicholas Dreystadt, and I consider Dreystadt’s life interesting and inspiring enough to pass along. But I’ll do it in my own words, because I think Mr. Drucker might be upset if I plagiarized him directly.

I should explain that Peter Drucker, who passed away in 2005, studied and wrote about business management. Business Week called him “the founding father” of that discipline. Before Drucker formalized management, business managers didn’t think much about the subject. And in the course of his 95-year life, Drucker advised international leaders, including three of our presidents. He studied the workings of major industry leaders, taught at Bennington College, Sarah Lawrence, Claremont, and NYU. He wrote 81 books and received 10 honorary degrees from universities around the world.

What caught my eye in Adventures of a Bystander was the chapter in which he talked about General Motors. Mr. Drucker wanted to study GM to discover how it was organized and how it ran itself. In doing so, he contrasted the management styles of two divisional “presidents,” what we now call general managers: Marvin Coyle of Chevrolet and Nicholas Dreystadt of Cadillac. Both names were familiar to me, but I hadn’t known much about either man.

According to Drucker, Marvin Coyle ran Chevrolet with a heavy hand. His people were generally afraid of him, and he was very much the off-putting autocrat. Dreystadt represented the opposite: easygoing, friendly, good-natured, casual, with a good sense of humor. Coyle, though, had built Chevrolet into GM’s powerhouse—the corporation’s main source of income—and despite being dictatorial, Marvin Coyle earned the respect of his peers.

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• 1930's
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• Hemmings