It would be impossible for the NFL to schedule games so that you alternate home/away games with teams in the other divisions.  That's why. You might could do it with opposing conferences only so that it rotates every four years:


2013:

Texans & Jags play at home vs Cardinals & Rams

Colts & Titans play at home vs Seahawks and 49ers


2017:

Texans & Jags play at home vs Seahawks & 49ers

Colts & Titans play at home vs Cardinals and Rams


and so on...

 

Doing it for both conferences however is a logisitcal problem because you can face say the Raiders two years in a row, and then when the Jags would be scheduled for the west, be expected to have a home game versus the raiders when the alternation would require an away game.  

 

I suppose they don't do it in the inter conference games is because they can't do it in same conference games.

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