The first thing that you should buy with your MVP reward are the legends and heroes teams. After you unlock all of them, write down the roster of one of those teams. Then, start a new dynasty with any team but make sure you can use unlockable players. Then, release all of your AA players and then move your AAA players to the AA league. Next, sign your team you noted earlier. Note: This will take about 10 minutes, and you will have to fill in the batting order and pitching rotation for each team.