I'm writing a story which includes characters who attend Hogwarts from 1999 until 2007. There are parts which include classes and all, so I was wondering about the Hogwarts staff during this time period. Who could be the teachers, now? Would they be the same or would new teachers have arrived (well, I've already replaced Professor Sprout with Neville in the story)? And most importantly, whom do you think would be the Headmaster/ Headmistress? Do you think Hagrid, Madame Pomfrey, Filch and all would remain?

Any help on this would be lovely .

Thank you!