I think the correct answer would be Negotiate it right, sell it right and deliver it right.
No matter how much you plan it out, there might be issues that you face at the top of the supply chain. In such a case, you need to negotiate the price or other aspects of the product or service you are selling.
Emphasis also needs to be put on the way the product is sold or marketed. The marketing and advertising departments come into play here. They need to clearly define your client base target audience and the way in which you want to market your brand.
At the end, and most importantly lies the proper delivery of the service or product. It defines the future prospects for your brand.