Nate Peterman will be the Bills starting quarterback when they open the season on Sunday in Baltimore. Peterman beats out top draft pick Josh Allen. Allen will be the backup. Quarterback AJ McCarron was traded to the Oakland Raiders for a 5th round draft pick this past weekend. Peterman completed 33 of 41 passes this preseason for 431 yards, three touchdowns and one interception. Peterman will be the Bills' 11th season-opening starting quarterback since 1997.