What if the NFL just went with 8 team divisions?
NFC West
LAR, SF, Sea, Ariz,
Minn, GB, Chi, Det
AFC West
LAC, LV, Den, KC,
Hou, Tenn, Indy, Jax
NFC East
Dal, Wash, Philly, NYG,
Atl, Carolina, Tampa, NO
AFC East
NYJ, NE, Buf, Miami,
Balt, Pitt, Cle, Cincy
The main problem I see with this setup is Jacksonville playing in the AFC West, but other than that, the other teams might be ok with this.
Otherwise you could just get rid of AFC and NFC and combine geographic divisions
West
LAR, SF, Sea, Ariz,
LAC, LV, Den, KC
South
Atl, Carolina, Tampa, NO,
Hou, Tenn, Indy, Jax
East
Dal, Wash, Philly, NYG,
NYJ, NE, Buf, Miami
North
Minn, GB, Chi, Det,
Balt, Pitt, Cle, Cincy