A CEO learns from other CEO's mistakes

A very Mistake-Banky snippet of the outstanding "CEO psychology" post from Venture Capitalist and one-time CEO Ben Horowitz:

Although it’s nearly impossible to get high quality advice on the tough decisions that you make, it is extremely useful from a psychological perspective to talk to people who have been through similarly challenging decisions. My friend Bill Campbell was a huge help to me as CEO, but interestingly it wasn’t his great success running Intuit that I found most useful; it was his disastrous experience running Go. Through that experience and his most traumatic days at Intuit (like laying off 1/3 of the company), Bill learned a tremendous amount about how to think about excruciatingly difficult decisions from a psychological perspective.