I'm currently in a second year of a manager/coach career mode, and I've noticed a few different things
Games are being played at the same venue multiple times a day on the fixture and some at the same time
In this career mode i finished as premiers and gold coast finished last, It's weird seeing gold coast getting 6-7 friday night games and my club get none. As teams people want to see are usually showcased on Friday and prime time slots.
Obviously these are minor issues and aren't a big deal but just some extra things that could be implemented to create realism.
I don't know if this is in the game but seeing Easter Monday, ANZAC Day, ANZAC Day Eve, Queens Birthday, Richmond vs Carlton opener and Dreamtime at the G every year in the right time slots would create more realism. Even seeing big crowds no matter where the teams are on the ladder as all these games create big crowds and if we are playing a career mode as any of these teams it would be a cool addition to play in these games.