The Perfect Sales process would have to be:
• easy for the buyer
• easy and effective for the sales person
• composed of and provide credible information as efficiently as the buyer can access it themselves
• fair in treating the buyer as an informed person with access to knowledge
• satisfying to the customer and the company by consummating a sale
The litmus test for the Perfect Sales process would be: "can you advertise your sales process?"
If there is any part you CANNOT advertise, there is something wrong with it.