Know-How Exchange : Student Questions

I am researching the success / difficulties associated with deploying Six Sigma within a Sales & Marketing function. I would like to communicate with Sales / Marketing / Six Sigma professionals who feel that they would be able to offer me valuable advice or suggest company case studies where the business has seen a benefit from adopting this business process improvement.
I can be e-mailed at julia.miller@wcbf.com or if you prefer to post your reply here, I will follow this question up.
Thank you very much.