[Editor’s note: This is the eighth report in our multipart series “Help Wanted,” in which Mahoning Matters reviews labor shortages in Mahoning County’s top employment sectors, focusing on jobs that are difficult to fill, have high turnover or are otherwise in high demand. Nationwide, 4.3 million people quit their jobs in December 2021 alone, according to federal data. This report focuses on manufacturing jobs. Past articles have focused on health and veterinary care, education, social work and food service. Have something to say about local employment rates or in-demand jobs? Email us at news@mahoningmatters.com, send us a confidential tip here or call us toll-free at 888-655-1012.]