Case studies are one of the most important tools in marketing. Longer than an ad, and shorter than a white paper, they balance measurable metrics with human interest details and turn leads into customers. My chosen format makes use of three sections: challenge, approach, and impact. A long-standing work friend (who doubles as a stalwart client) is a national marketing director and asked me to write a series of case studies as part of a campaign to market her company’s work. This case study shares how an auto plant, bound for closure, saved $3 millon per year by keeping its hardworking people firmly at the wheel.