This complaint is similar to the "Endless War" item. At some point in the game when you own perhaps half the map, you tend to become an observer instead of a player, and half the game disappears. By that I mean that everyone declares war on you, there is never any peace to do anything but fight, and most decisions are made by AI clans via the council, and most future success depends on how well the AI clans fight for you. It is amazing how well they do sometimes but they can also be very stupid. But the main complaint is that the player is really no longer playing the game. You don't assign fiefs, you can't direct clan armies, you can't decide where to defend or attack, fief management by AI clans is dubious or non-existent, and the game sort of plays itself. I understand the need for play balance and I don't really have any miracle suggestions but it is a shame the late game play sort of disappears.