I've been thinking about this the last couple of days and here are some ideas, bounce it back and let me know what you all think. Credit balances are reset to 5 credits daily if you have less than 5 already, and that would remain, so any actions that cost less than 5 credits will require you to have at least 6 credits in your account to do.
* Prior to the first pre-season game, you can change the name of any rookies on your team for 1 credit each
* At any time you can add/change a nickname to a player for 1 credit
* You can name your stadium for 1 credit
* Moving a team, setting (or changing) the nickname, or uploading an image file for your team should be a greater cost to discourage people from doing it flippantly and then bailing - so I'm thinking at least 10 credits for each of those actions.
- Maybe moving a team should require approval of a certain percentage of the league owners as well? A rejected move offer would refund the credits in this case.