Amy Knaul has been promoted to the position of commercial portfolio manager at Stillman Bank, based in Stillman Valley, Ill..Knaul, who works in Rockford, Ill., will oversee performance of the bank's commercial loan portfolio while managing and growing commercial banking relationships. She brings about five years of experience in credit analysis and commercial/consumer loan processing at Stillman Bank, which she joined after a career in manufacturing.Knaul has a bachelor's degree in finance from Northern Illinois University.