Although this article is from 2007, these strategies are still something to at least think about!! MBGH still hears a lot about:
Covering preventive services at 100%
Mandating mail order
Moving from the carrot to the stick (or as a speaker referred to it lately, as a "frozen carrot")
Auditing enrolled dependents
Click here to read the Workforce.com article. You will need to register to see the article,but it is free!!