Douglas Charles Marrone (born July 25, 1964) is an American football coach and former offensive tackle. He is currently the offensive line coach for the New England Patriots of the National Football League (NFL). He played in the NFL for the Miami Dolphins and New Orleans Saints. He came to prominence as the head coach at Syracuse from 2009 to 2012, where he previously played college football. He also served as the head coach of the NFL's Buffalo Bills from 2013 to 2014 and the Jacksonville Jaguars from 2016 to 2020.