Where Did All The Men Go?

Hermione works for a private investigating company. Her new assignment is to figure out why all men with powerful jobs are suddenly retiring or quitting, and why the new bosses are all women who aren't qualified for them. Will she be able to find the reason behind women in new positions or is it that the wizarding world is becoming more progressive? Post-Hogwarts. EWE. HG/MF JFF/BZ