I'm wondering if there has been any division in the modern day NFL history where all teams finished the regular season with winning or losing record. Even though this might not be so probable, it is definitely possible.
This question is motivated by what's been happening this year (2014) in the NFL. All teams in the AFC North (Cincinnati, Pittsburgh, Baltimore and Cleveland) have winning record as of week 12; and teams in NFC South (Atlanta, New Orleans, Carolina, Tampa Bay) all have losing record! at the end of week 12, the worst record in AFC North was 7-4 which is better than the best record in NFC South at 4-7.
- The 2014 NFC South's champion is Carolina Panthers with a losing record of 7-8-1.
- 2014 AFC North did not have all team with winning record as Cleveland Brown finished at 7-9