Saints coach Kellen Moore has been around football for virtually his entire life. At 37, the NFL’s youngest head coach enters his first game in charge when New Orleans hosts the Arizona Cardinals. It’s a new chapter for Moore, and the Saints, who haven’t made the playoffs since record-setting quarterback Drew Brees retired after the 2020 season — and haven’t had a winning season since former coach Sean Payton left for a one-year retirement after the 2021 season.