I used to play another basketball management game where you controlled a single player.
My suggestion: Why not have an option where people can pay for (like supporter) a second team under their control?
The teams would have to be payed for on a seasonly basis. I obviously have no idea what the prices would be like but I just thought this would be a fun way for people to get more involved in the game. All the new teams would be just like starting over at BuzzerBeater with a new roster in the lowest division in your country. Anyone think this is a good idea?