FILE - In this Sept. 10, 2020 file photo, Kansas City Chiefs head coach Andy Reid watches as players warm up before an NFL football game against the Houston Texans in Kansas City, Mo. Buffalo Bills coach Sean McDermott pays credit to experiences and advice he gained working under Reid, while the two were in Philadelphia, including getting fired by Reid in 2010, which McDermott says was the best thing to happen to his career. (AP Photo/Charlie Riedel, File)

FILE - In this Sept. 13, 2020 file photo, Buffalo Bills head coach Sean McDermott pulls his mask down to give instructions on the sidelines during the second half of an NFL football game against the New York Jets in Orchard Park, N.Y. McDermott pays credit to experiences and advice he gained working under Kansas City coach Andy Reid, while the two were in Philadelphia, including getting fired by Reid in 2010, which McDermott says was the best thing to happen to his career. (AP Photo/Jeffrey T. Barnes, File)