What they said was defensive ACE is tied to the actual coach.
Offensive freelance offense was tied to team. I am thinking this includes playbooks as well.
The only way I say you want to change certain aspects of how ACE is handled would be to completely re-do rosters and teams from sctratch starting with the offensive freelance you want on the current team. However if you are personally controlling the one team you can change the freelance how you want and change the defense how you like.