Jacques Murphy writes,
Every culture has its blind spots and weak points that can trip it up despite its strengths and clear-sightedness. So, too, every industry struggles with common shortcomings that seem to grow out of misperceptions and failings learned at many companies and steadily spread across the industry.
For a Product Manager, who is usually deeply involved in all the major workings of a company, from sales and marketing to product development and the business model, it can be a sobering experience to try to overcome widespread weaknesses with few positive examples for guidance. Like personal failings, a company's flaws, especially when typical of the whole industry, can prove fiercely resistant to improvement.
Read Software Development Pitfalls: Requirements for a discussion of how to better understand software requirements--and how to misunderstand them a little less.