some of my FMs seem to loose their traits gained from the schools (in particular those of the GoodAdministrator; although I may be mistaken and that the GoodAdministrator is gained from constructing buildings); I had an FM in a Makedonian campaign staying in Sparte for 4 years for his Agoge, and Sparte having an academy built in it, gained a "Superb Administrator" trait. however upon sending him out of town, while marching to another city; he seemed to have lost the trait (and the management scrolls, which are the only attributes he got).