Carefully or not at all. I was involved in one that failed. The reason was probably trying to sell a new product to new customers rather than make a product tha

Carefully or not at all. I was involved in one that failed. The reason was probably trying to sell a new product to new customers rather than make a product that could be used by existing clients. These days it would be a smoother transition to sell hosted services that can blend the consulting and product rather than it being either/or.