Why not just Change penalty enforcement to the ALL-BUT-3 principle?
or how about: All-But-Several?
Gee whiz, that sounds familiar:
"Thanks for sharing all this Ralph. I too agree that ABO and the previous spot issue conflict. But I also think it could have resolved without throwing the baby out with the bath water. I mean, even with the change to this basic spot system, the underlying philosophy of ABO is still alive once we get beyond the LOS. In fact, it probably could have been handled easily just by changing the language of the but one part of ABO, and adding the additional basic spot is previous spot for all fouls by A behind the LOS, and fouls by B behind the Los when the run ends behind the line.
For example, we could go with an All but Four philosophy.
All fouls are enforced from the basic spot except for four: (1) a foul by the team in possession behind the basic spot when the run or related run ends beyond the line of scrimmage and the foul is behind the end of the run.
This foul is enforced from the spot of the foul.
(2) a foul by A behind the line of scrimmage regardless of where the run ends or the ball becomes dead. This foul is enforced from the Previous Spot.
(3) a foul by B behind the line of scrimmage when the run or related run ends behind the line of scrimmage. This foul is enforced from the Previous spot.
(4) Fouls that carry special enforcements."