Scannella was Sam Rutigliano's running backs coach in Cleveland from 1982 to 1983 before being promoted to offensive coordinator in 1984. He was not retained by new head coach Marty Schottenheimer following the 1984 season. In 1987, Scannella returned to the Raiders, who had by this time moved to Los Angeles, this time as the team's offensive backfield coach. Here he would coach two former Heisman Trophy winners Marcus Allen and Bo Jackson. After the 1988 season, he and quarterbacks coach Tom Walsh were fired by head coach Mike Shanahan, but owner Al Davis refused to allow this and the two coaches stayed on. Scannella retired from coaching in February 1994. He served as a scout for the Indianapolis Colts during the 2000s. Scannella died on May 3, 2018, three weeks short of his 90th birthday.