Mark Cowan and John Zahora joined M&M Precision Systems Corp. of Willoughby, OH, in different management positions. According to the company's press release, the two are both re-joining M&M with decades of gear experience. Cowan,now manager of software development, has worked at Mahr GmbH, ZF of Batavia, OH, and Process Equipment of Tipp City, OH. Zahora, whose new title is business unit manager of the special machines division, has also had more than 20 years of experience in lean manufacturing and product improvement. He previously worked at Process Equipment.