There are a number of ways of going about the process of writing a good business plan. One of the most tried and time tested ways that works well is using a business plan template.
At the end of it all, hiring small business consultants would be the key to your company's overall success. You want your business to be the best that it can be. For this to happen, long-term and short-term goals must be set and these changes must be implemented in a timely manner. With this in mind, you may want to involve the business plan consultant in daily operations.
But your idea may be so new that you may also need to talk to potential customers, host some focus groups, talk to an ad agency, or maybe even make a prototype and float it past some people. Be prepared to spend the time. Remember, it's not about the Plan but the Planning.
Carrying on with the example of a coffee shop, a business plan consultant will figure out what the best location would be. They already know coffee shops do well in areas with a certain demographic in place. These include students and workers, who are within close proximity to book stores.