I'm a big fan of the "mistakes to avoid" genre, and this book is an excellent representative of it.
The authors romp through a broad spectrum of industries, outlining cases of how companies incurred big losses -- everything from metal ore shippers to film photography -- and delve into the dynamics that make these large failures possible.
From an investing point of view, both the examples and the insight into dynamics behind them are very valuable. One of the several patterns the authors highlight is the rollup -- where a company acquires assets of many small companies and seeks to either raise prices, or eke out efficiencies from economies of scale. Well, what is usually discounted is that acquired businesses may lose some of their customer intimacy, the competitors may pounce during the integration difficulties, and diseconomies of scale from loss of local agility may -- in some industries -- outweigh the benefits. In general, the rollup plays rose in popularity when backoffice IT was on the rise, so integration of backoffice systems is often envisioned, but not as often realized.
The authors perceptively point out that what would be nice for the company is not always what the customer dreams about. For instance, retailer acquisitions where the acquired stores switch their model to that of the buyer -- for instance from coupon inc and frequent sales to "everyday low prices" can lead to large customer defections. Since the book has come out, JC Penney seems to have repeated this history which it failed to heed.
The second part of the book shifts gears from case studies to how managers of large companies can adjust the decision processes to steer clear of large mistakes. It zooms in on the cognitive biases that come into play (like premature closure and conformity) and insightfully highlights that a CEO often wants (because of financial incentives or ego) to leave a legacy of executing a daring, industry-reshaping move. This bias for glory can cost a corporation dearly. The book goes over the frequently discussed experiments demonstrating human irrationality, but does so with some freshness -- after describing the Milgram's experiments about subjects administering shocks, the authors summarize thus: "... never trust a social scientist. Whatever he tells you he's testing surely isn't what's really going on."
In its brief but insight fool looks at specific failures (grouped into categories such as "Consolidation Blues", and "Deflated Rollups") the book also helped me better appreciate the difference between growing business organically versus growth through acquisition. In a sense, growth through acquisition is an inherently reducing activity -- as operations are consolidated, staff is fired and the acquired company's culture becomes both less independent and subjugated to the acquirer's. To make matters worse, the frequent acquisitions send out the signal to the prospective targets, who wind up extracting much of the hoped for economic gain of the consolidation. So, while "diworsification" should not be new to anyone, this book will help one understand the specific mechanisms involved, and perhaps even recognize related forms of it -- such as growth through acquisition of, for instance, mortgage servicing rights or other assets.
All in all, an insightful book that covers a lot of ground in relatively few pages, helping one build up their "latticework of mental models" and a set of cases of mistakes companies make. Five stars, worth re-reading.