I think it would be practical if you could move team slots. So that you wouldn´t have to re-make new teams you like to play that are at the bottom to be on the top (and to re-make also the teams of the top you had to replace with the new ones but you wanted keep them). That´s why it would be better to make teams slots movable instead of static.
Have a nice day,
PS: And sorry for my english xD