Compressor Systems, Inc. (CSI), established in 1970, focuses on the rental and sale of natural gas compressors, employing about forty salespeople. The company implemented a customizable sales tool, Landslide, resulting in a 95% adoption rate, improved communication, and reduced administrative time for sales personnel. Best practices for field sales include developing a structured selling process, utilizing monitoring tools, and outsourcing data entry to enhance efficiency and effectiveness.