I'm considering a game set in and around Hutt Space where all of the PCs have lasting entanglements with a Hutt Kajidic. For an Edge game, Obligation is the obvious way of accomplishing this, but I am considering replacing or supplementing it with Duty (from Age of Rebellion, but directed to the Hutt Kajidic rather than the Rebel Alliance).
Duty has an advantage that it ties to contribution rank and rewards, and I would want each character to track Duty and contribution rank independently (rather than as a group) since plotting and scheming to appear better in the eyes of the Hutt(s) is part of the game.
If I do this, I would still keep Obligation as something that happens when a character earns disfavor through failure in various ways.
So, feedback and/or suggestions?