I'm new to the forum. I currently run the realism mod by Paul as well as your Extended Player and Manager Editor.
I am playing a player career and got frustrated because the AI manager put me as a right winger even tough I am a striker only. On the team are several other attackers which are left wingers.
My goal was to change one or two of them to right wingers to get placed as central striker.
Unfortunately the position change of the other player does not stick.
I tried to add traits too - these work btw.
And another question to an experienced modder like you: would it be possible to just activate the "team management" ui element in player career? then I could just change the team setup and override any decision the AI made.