Start by assuming that existing businesses want to expand into your planned business area. Next, assume that a dozen other people not currently in business have the same idea and are creating a business plan. Discuss these potential competitors and outline how your business will be stronger than theirs. Consider how you can partner to lock out avenues from competitors. Augment your team.
Investors look for a team that includes people with experience in their proposed business field.
If you're light on relevant experience, seek businessowners with similar business models to serve as consultants. For example, an online sporting goods store might turn to a business with inventory management experience. Build an advisory board. In addition to strengthening your team with strategic partners, create an advisory board of experts. These should be people who influence your chosen industry and who know how to build businesses.