There's the killer idea. The dynamic team. The seed round. Great founders today -- the ones who create high-growth, scalable businesses -- understand that these and other elements are indispensable in transforming a startup into today’s unicorn company.

But before any of that has an impact, there is one thing that every successful business must find: perfect product-market fit.

In "The Only Thing That Matters: Getting Your Startup to Product-Market Fit," we sit down with hall of fame-level entrepreneurs who discussing the insights that allowed them to achieve product-market fit.

Episode 1: Joe Mansueto, founder of Morningstar.

Key takeaways include:

-Know a problem "inside out" to gather key insights

-Harness major emerging trends to create explosive growth

-Find other complementary trends that can further amplify your wave

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