Help Creating League
 

So quick explanation. I struggle to manage all that different minor leagues that come with standard MLB game.

I want to create a league with real players that is MLB, AAA, AA, A, Rookie, only one of each but the kicker is I don't want teams to lose prospects that are playing in the leagues I delete, is this possible?

As long as the rosters are empty when you delete the league - basically move the players to another level/team.

If you delete the league with players still on the teams, they will all go to the FA pool.

You can also move the players off the teams you do not want in your organization.
Then you can associate those team with another organization. I do this when I play modern. It takes about 20 minutes, mainly because I go through all of the ML organizations to try to find one that does not have a team at that level or only has 5 or so minor league affiliates. Switching the minor league teams association is really quick and simple. Just make sure you move all of your players off the team you are changing.