I can take a shot at a tip on weeding at pretenders as a marketer: Ask them to describe, in technical detail, what the software does. Ask them about challenges the end user may have going through the process of using it. A bad marketer is all about creating a scummy sales pitch to get a quick buck. A great marketer is there on the frontlines understanding exactly the functions of the software and how they solve the customer's problems in implicit or explicit ways.
