I think a great idea to add for non-supporters would be a "Private Friendly" that teams would be allowed to schedule maybe once or twice per season. The Private Friendlies would be played like private leagues are now in terms of how the minutes players play would not count for anything and players cant suffer injuries from them, but they wouldn't be in leagues and would be available to non-supporter teams. This would add another exciting feature to the game that wouldn't affect the league or cup matches, but would bring more competitiveness to BuzzerBeater since managers would be able to have their own rivalry games with friends and be able to play any players they want unlike in friendlies where they would have to worry about managing minutes for the week.