2k19 save slots. Any way to get more than 10? Xbox

[Mulk990]

Hey guys. I am at a loss. I am in season 10 of an OFFLINE franchise in 2k19. I create my entire rosters from scratch, including draft classes. I started this In 2k11 and went 19 seasons before I decided to move my entie league to 2k19 Last year.

But now, I have reached 10 seasons which means I've used up every available save slot. So now I'll be forced to save over an old season, and each season after that.

And I see no options to 1. Open up extra slots. 2. Backup my saves, anywhere. Such as another profile or a USB? 3. Convert my league to 2k20 easily without recreating every single player.

Does ANYONE have ANY suggestions at all? Thank you for any help you could give.