There are some people who will take personal advantage of every situation. There are some people in whom the dark side wins. Your company should rigorously weed these people out. You can do it with compassion (remember, it was your mistake to hire them in the first place); but it should be done.

Fortunately, these people are rare. And we don’t base this claim solely on a personal faith in human nature.

When the two people at the top of a company have a dysfunctional relationship, there’s no way that the rest of the company beneath them can be functional. It’s like having two parents who fight all the time. The kids feel the strain, and they start to reflect the animosity back onto the parents and vent it at each other.

That was the source of so much of his and the company’s success, and I had immense respect for Michael’s tendency to sweat the details. It showed how much he cared, and it made a difference. He understood that “great” is often a collection of very small things, and he helped me appreciate that even more deeply. Michael was proud of his micromanagement, but in expressing his pride, and reminding people of the details he was focused on, he could be perceived as being petty and small-minded.

Don’t let your ego get in the way of making the best possible decision. I was stung when Roy and Stanley sued the board for choosing me as CEO, and I certainly could have gone to battle with them and prevailed, but it all would have come at a huge cost to the company and been a giant distraction from what really mattered. My job was to set our company on a new path, and the first step was to defuse this unnecessary struggle. The easiest and most productive way to do that was to recognize that what Roy needed, ultimately, was to feel respected. That was precious to him, and it cost me and the company so little.

Plenty of people warned me that the worst thing I could do was let Steve into the company, that he would bully me and everyone else. I always said the same thing: “How can Steve Jobs coming into our company not be a good thing? Even if it comes at my expense? Who wouldn’t want Steve Jobs to have influence over how a company is run?” I wasn’t worried about how he would act, and I was confident that if he did do something that was out of line, I could call him out on it. He was quick to judge people, and when he criticized, it was often quite harsh. That said, he came to all the board meetings and actively participated, giving the kind of objective criticism you’d expect from any board member. He rarely created trouble for me. Not never but rarely.