New rule means NFL could flex these two Eagles games to second
NFL Expanding Flex Scheduling - Bears Insider
Official Site of the National Football League
Creating the NFL Schedule: a look inside a complex and detailed
NFL OKs flex scheduling, but Packers fans might not have to worry
NFL's controversial 'Thursday Night Football' flex scheduling
NFL approves limited flexible scheduling for Thursday night games
NFL approves limited flexible scheduling for Thursday night games
Steelers, Raiders among 8 NFL teams that voted against Thursday