This is useful for a group with 2 problems: The players do not feel inspiration to come up with or adapt character that fit a situation, and the Warden is inexperienced enough to rely on a list instead of improvising such things. But I fear that Warden may be overtaxed with keeping that extra note sheet. A more useful solution would be to prepare replacements when preparing loadouts for the game. I can picture a version 2 of this which helps Wardens create NPCs that could serve as replacement Crew during prep of a scenario. And I would make it address the main issue with replacements: a background and motivation to join the cause. Delta Green was invented for this. But I don't think we need to spin off a secret agent variant, preparing replacements up front will do. Glad you got this one in as well, quite prolific!