A nebulous job description related to search engine success that the non-technical entrepreneur needs could be what parts you from your cash and enriches her $200k/year "SEO business."
Did a search optimization specialist promise you all the traffic your servers can stand? Did your site go from a top rank in Google to a guest-of-honor stint in Matt Cutts' blog?
Is that what's troubling you, friend?
One can avoid being the latest "gee my PageRank just hit zero and I don't know why" innocent bystander by perusing the post at SEO BlackHat. In that post, they describe how to make $200,000 a year by taking advantage of people who don't understand good and bad optimization techniques.
Here is step number 6 as explained by the post. It may sound familiar to a lot of people:
You guarantee a top ten placement in Google, Yahoo, and MSN. How do you deliver this? If need be "with long phrases in quotes". Do not guarantee that you will rank for any important search phrases that people actually search for or that have any traffic. Do not do pay for performance or ever agree to work for a piece of the increase in revenue.
Security tends to be thwarted most frequently by social engineering techniques. SecurityFocus recently reported at length about this. The SEO scams work in a similar fashion. Don't be the sucker; read the SEO BlackHat and SecurityFocus stories and send that scammer on her way.