Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This book was a waste of my time

If you have ever taken a one or two day Problem Solving/Project Management class, this book will be a waste of time for you. It is a watered down (way down) version of Problem Solving/PM 101. This is particularly ironic because the authors comment on how much better the McKinsey approach is when compared to other successful companies (e.g. GE,GlaxoSmithKline, and others). My experience is that GE's Six Sigma and other "tools" blow the McKinsey approach away. It is very hard to believe that McKinsey became a successful consulting firm by implementing these very elementary principles. Either the authors were too scared of violating their Proprietary Information Agreements to write anything of substance OR McKinsey simply has no practices, tools, techniques, or methodology that contribute to their success. Either way, this book will do NOTHING to increase your knowledge of how to solve business problems.