Setting up my roster in league play

[Smeerdude]

How do i make make roster and line changes be the same in league play. When i am playing single player i have all my roster and lines changes made and working. When i go into my league they go back to default.

How do i make my changes and have them be reflected offline and online. I hate having to make my changes everytime i play an online game.

Thanks for your help.