Is Executive Hubris Ruining Companies?

Crash McBang writes: In this article, Mathew Hayward, assistant professor at the University of Colorado, does a Q&A on his new book, Ego Check: Why Executive Hubris Is Wrecking Companies And Careers And How To Avoid The Trap , which shows how executives' inflated egos can impact what they choose to produce, the manufacturing decisions they make and how they market their products. What failures (colossal or otherwise) have you been involved in that could be contributed to Executive Hubris?