[yarcob]

I've met (and worked with) people who built something, and were looking for someone to sell it.

The unfortunate truth is that this usually doesn't work because of two reasons:

1) If you can't convince anybody to buy your product, you also won't be able to convince anybody to sell your product. You need to be able to at least sell your idea to the cofounder.

2) If you've never tried selling your product, and have never interacted with your customers, chances are that what you built doesn't solve anybodys problem. I've never seen a successful product that was a hit right away without any user testing and iteration based on user feedback, but some people are convinced their product is different.