Any team who qualified in the first half would want to rest their starters in the second half and would have no incentive to win.
Best record gets to host the SB. That should be incentive enough trying for homefield advantage.
I meant this all in fun since we are entering the doldrums of the NFL calender.
How about this. Get rid of NFL Europe and form a spring league here at home for players who want to reach or return to the NFL. Have the draft at the conclusion of the spring season.