Snowman,
I could get in to a long answer to your question, however, I am going to assume you understand the steps in the sales process.
The answer to your question lies in your utilizing the sales process on your sales staff. Do your homework and determine what the problems are, what is your solution to their problem and then sell it to them as you would any prospect.
One key point I use with all salespeople is I relate it to professional sports. The top athletes all have coaches, they master the basics and continually practice and refine the basics every single day.
I hope this answers your question.