turn bold strategies into evidence-based decisions
David J. Bland He is the founder of Precoil, with 20+ years of experience spanning startups and Fortune 500 companies. A sought-after keynote speaker and advisor, David is best known for helping organizations protect capital, reduce risk, and scale what works by testing assumptions against reality. He is also the co-author of the global bestseller Testing Business Ideas, which has been translated into more than 20 languages.
David J. Bland is the co-author of Testing Business Ideas and founder of Precoil. The book presents a systematic way to pressure-test new business ideas before committing significant resources. Built on Lean Startup and Design Thinking principles, it introduces a library of practical experiments for validating assumptions with evidence. Used worldwide by entrepreneurs, product managers, and corporate leaders, it helps organizations reduce the risk of failure, protect capital, and increase the odds of scalable success.
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