I spent ten years running various types of sales organizations and have never had a positive experience in outsourcing sales. I have hired outside consultants

I spent ten years running various types of sales organizations and have never had a positive experience in outsourcing sales. I have hired outside consultants with experience selling in certain areas to make warm introductions to companies in their rolodex. But, in these cases, me or my team always handled the sales process. The consultant simply received a spiff if one of their warm leads turned into a sale. Sales is just too core of a function to be trusted to outsiders. Also, early on, the sales process is your best source of constructive feedback on the product, pricing, etc. You need to hear that directly- an outsider won't be able to communicate that effectively.