Quick question: if I want to start a company, why do I necessarily need an idea first? There are tons of real-world problems that can be solved through startups, and I'm very sure that just because the founder of a company doesn't come up with the idea by his or her self, the company can still be very successful if they execute well.

Why does the idea for my company have to be my own idea? We could potentially have really talented founders who simply haven't had enough exposure in the right ecosystem (let's face it: not every place in the world is like the Bay Area) to have an idea for a startup yet.