With her retirement, West will cap a Virginia Tech career spanning more than 29 years of exemplary university service.
Nagel joined the university in 2017 and current serves as associate director of procurement for goods, services, and information technology. His appointment takes effect July 25.
Helmick led critical procurement initiatives that advanced the university's vision and impact. Her retirement will take effect Sept. 1.
The awards honored the university's Plastic Pollution and Solid Waste Reduction Plan and the Office of Sustainability's student internship program.