I am a corporate generalist who is transitioning to software sales with no real experience in the field. The only thing I really understand is what our clients want because I was one of them. Don't categorize yourself. If you are passionate about a startup, it will show, and you can sell it. I would take the advice of noahc and start pitching your idea to companies who would want it, ask how much they would be willing to pay for it and hold them to it. "Bootstrapping your business" is a good book and describes how Greg Gianforte sold a product before he had one.