Great Western Bancorp reported that Stephen W. Yose has been appointed as the organization's Executive Vice President and Chief Credit Officer. Yose brings over 34 years of banking experience to the position. He most recently served as Chief Credit Officer at First Interstate Bank in Billings, MT, where he has worked since April 2016. During his tenure at First Interstate Bank, he was responsible for all facets of credit risk and portfolio management as well as new product development, and the overall management of the credit administration department.