One thing the books and the movies never talked about were coaches for the Quidditch teams.  I realize that Head of Houses have plenty of responsibilities, but it seems unrealistic to me that a team captain would also be in charge of practices and everything else.  Maybe that's how it is done in England, but having that much pressure on a student, in an environment where politics and maturity are so unstable... I would think the adults would have to be batty to allow it.<br/><br/>Also, I know in my high school, there were fundraisers that teachers would participate in.  Allowing teachers to compete against other teachers for points for their House seems like something that could easily be incorporated.  I forget exactly what it was called, The House Cup (?), but hundreds of points were earned over the course of a year and only a portion of those points were ever accounted for in the story.  Leaving quite a bit of wiggle room for us to come up with events, competitions, and other things that would include the teachers as well.