And of course it's within Gren's modus to become the core of his team and serve as the shadow leader, allowing Sapphire to become the face of the team and handle the paperwork and reputation that comes with leadership, while Gren does his part to keep them together and functioning to the best of their abilities.

Which may or may not involved lobotomies. Or some sadomasochism training regimes, which Gren is certainly going to put Shiro through the wringer once this is all over...