Everything you didn't want to know about Filmation can be found at Jim's Filmation Page. Also, Paul Dini, a writer for Filmation's flagship property "He-Man," summarized the working methods and executive structure of the studio that Lou Scheimer built:
Do you have any comments on Filmation's upper level management?
Dolts, fools, idiots, drunks, child molesters, grave robbers, and lousy writers. Also cheap, cheap, cheap! I've got stories (about them) but they would get me sued. Besides, why should I give them to you for free when I can write a tell-all and make big bucks?