Is it possible to make more than 4 own teams?

Would it be possible to open up to make atleast 8 own teams.

They were running low on profile space, apparently MS only allows a few KB, so there was no space for more teams. I'm curious if they would be allowed to use more space for saves, if they had seperate deletable save files (at the moment it doesn't show up as a saved game, so you can't delete it).