DeWitt, Mich. — Shelly Guenther will be joining the DENTCO team as the new director of human resources, says DENTCO President Scott Milnes. She most recently worked as an HR manager with Maru Hospitality Group, which had eight restaurant locations and more than 400 employees. “Shelly is a great addition to our DENTCO team,” says Milnes. “With her depth of experience in human resources, we’re looking forward to her fostering great employee relationships and continuing our high-rated benefit programs.” In her new role, Guenther will take a strategic approach that …