Having Hazel be something like "the upcoming school idol" like they always talk about in anime that follow these sorts of conventions actually sounds sort of interesting to me, Diggerton, so I don't think it was a mistake.
Higher ranked students can still do lower ranked Special Assignments, they just don't have as much use for them. If any of you have played the Monster Hunter series, that kind of quest system is what I'm aiming for. By the time you've done a few higher ranked quests, you don't need the materials you'd get from lower ones as much and you could get better money doing the less difficult, but higher ranked quests. But yeah, tutoring or helping other students sounds like a good idea to me.
Since it looks like most people are in the dorms now, would anyone be opposed to a time skip?