”In front of five hundred managers, “I explained why four corporate officers were asked to leave during the prior year—even though they delivered good financial performance. . . . [They] were asked to go because they didn’t practice our values.” The approved way to foster productivity was now through mentoring, not through terror.

Still, people felt vulnerable - and that bred suspicion. More and more, I began to think that many of our employees viewed any change as a threat to the Pixar way (and, as such, to our ability to be successful going forward).

I’ve known some geniuses who were such a pain to work with that we had to let them go; then again, some of our most brilliant, delightful, and effective people were let go by previous employers for being none of those things. It would be nice if there were some magic bullet that turned difficult people into success stories, but there isn’t. There are just too many unknowns and immeasurable personal characteristics involved for us to pretend that we have figured out how to do that. Everyone says they want to hire excellent people, but in truth we don’t really know, at first, who will rise up to make a difference. I believe in putting in place a framework for finding potential, then nurturing talent and excellence, believing that many will rise, while knowing that not all will.

But what makes the individual stories of karoshi and karo jisatsu different from these is the fact that what drove the likes of Miwa Sado to lose or take their lives was not the risk of hardship or poverty but their own ambitions refracted through the expectations of their employers.

The implications of this kind of leap to a company’s economic model can be devastating. In IBM’s case it meant the collapse of gross profit margins and the attendant changes we had to engineer to lower our cost structure without compromising our effectiveness.

Yet the hardest part of these decisions was neither the technological nor economic transformations required. It was changing the culture—the mindset and instincts of hundreds of thousands of people who had grown up in an undeniably successful company, but one that had for decades been immune to normal competitive and economic forces.