You saying Sword and the others except Sheehan are all SHOPO plants?  (actually this is a rhetorical question as already know the answer). That makes sense for Costales to abruptly resign because if she sides with Sheehan and not be a rubber stamp for Sword, there would be he ll to pay against SHOPO and ALL other unions that she and her fainily might have to deal with in her own businesses and private life.  Better for her to give a cover story of no diversity of applicants rather then vote against Sword and combine forces with Sheehan.