Usually, new projects are measured and held accountable to milestones and deadlines. When a project is on track, on time, and on budget, our intuition is that it is being well managed. This intuition is dead wrong.

Most startups fail because they are building something that nobody wants. Enamored with a new technology or a radical new product, many entrepreneurs never find a set of customers who will buy it. Each new feature added to such a product is actually wasted effort, even if it’s done on-time and on-budget. In product that nobody wants, all the features get thrown away.

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— Is Entrepreneurship a Management Science? - Harvard Business Review