He is widely recognized for his work in the field of strategy and his contributions to the development of the "kernel" concept of strategy. Rumelt's work is characterized by a focus on the importance of deep understanding and a clear diagnosis of the underlying dynamics of a problem, as well as the development of concrete and coherent action plans. He is a sought-after speaker and consultant and continues to be an influential figure in the field of strategy and management.

Both Good Strategy/Bad Strategy and The Crux address the topic of solving business problems, but they take different approaches and offer different insights.

Good Strategy/Bad Strategy focuses specifically on the topic of strategy and provides a definition of what constitutes a good strategy, as well as what differentiates it from a bad strategy. The book emphasizes the importance of a clear diagnosis of the problem, a guiding policy for dealing with it, and concrete action. The author provides practical tools for developing and evaluating strategies.

The Crux, on the other hand, takes a more comprehensive look at the process of solving business problems. The author argues that most business problems are complex and interconnected, and therefore, require a deeper understanding of the underlying dynamics. The book offers a framework for diagnosing the crux of a problem and provides practical tools for developing and implementing solutions. The author emphasizes the importance of considering the broader context, including the company's goals, resources, and constraints, when developing a strategy.

In conclusion, Good Strategy/Bad Strategy focuses specifically on strategy, while The Crux offers a more comprehensive approach to solving business problems. Both books offer valuable insights and practical tools, and they complement each other in their coverage of the topic.

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