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.

In Episode 5, host Pat Ryan talks with serial entrepreneur Brett Hurt, who founded CoreMetrics (today at a $405M market cap) and Bazaarvoice (acquired by IBM), and recently launched his most exciting company yet, Date.World.