A School of Mathematics alumna has been elected as the new chief insurance officer for GuideStone, which provides retirement solutions, insurance coverage and investment products and services to churches, ministries, organizations and institutions as well as ministry-minded individuals. Nadeena Kersey, B.S. MATH, will provide executive leadership and oversight to the insurance line of business, including product development, sales and marketing, services and operations of life and health plans, property and casualty coverage and ancillary products.