When you, and your partners if any, have all the core skills and industry knowledge you need to start right away without seeking experts, napkin notes may be enough to get going. Let's say you are already an expert in technology and social media. Then you, and your team, probably don't need a detailed plan to start developing a new app. You will draw on your knowledge and experience, and you understand that you might need to go back and do some more detailed and formal planning later. Certainly when you reach the point where you are looking for investors or lenders, you will move beyond those first casual notes. Until then, drawing upon your expertise can allow you to quickly jump into the market and perhaps gain a competitive edge by using a minimalist plan.
Everyone has prepared a business plan. Well, should that read, everyone should have prepared a business plan? My thinking is that these tend only to be prepared when they are needed, rather than as a useful business tool for all senior management. My top five ingredients are: 1. Understand what a business plan is; 2. Understand what you intend to use it for; 3. Identify and implement the critical steps to achieving a successful business plan; 4. Understand what needs to be included in the plan; 5. Be aware of gaps or weaknesses in your plan.