While the novelty of creating the next Facebook sounds amazing, the truth is we don't need to necessarily invent a product to bring a new innovation to market.

If we look closely, we'll see that some of the fastest-growing companies out there — Uber, Casper, Dollar Shave Club and dare I say it, WeWork — are all based on ancient business models with a new twist.

Start With This: "What's Wrong With Current Products?"

Look, Uber didn't invent taxis — they just simply asked, "What's broken about the taxi business?" (Well, the limo business initially but who's tracking?) Any of us would be hard-pressed to find an existing product or service that couldn't use a ton of improvement.

What customers care most about is the improvement. Maybe that's ...