Roster Editing Question

I have RED MC and I noticed in a couple of the downloaded Association roster fixes the retro teams are missing. How do you replace and/or take those teams out of the roster set up? I like to play the retro teams vs the current NBA teams in Association Mode.

After you downloaded a roster with retro teams, load it before starting a new association. When you're editing the Association settings, there should be an option to customize the league. Then you can replace current teams with the ones you want.