Or... the places they have deep expertise they have NDA/non-competes to worry about. (At least, outside of California.)

Sure, I could go and create an accounting app - or a clinical trial recruitment app - as a basic clone of what I've already created. And I might even make it better for some niche. But even if I know what that product system needs, I still need to find someone with the relationships to get in the door.

The trick is - you don't need an idea man for a non-technical founder. You really need someone with a rolodex and a problem.