This is a little time consuming depending on how many players you want to use.

1. Turn on enforce trades.
2. select a minor leaguer on your roster
3. trade with the star you want on the other team
4. then trade back
5. You should now have to inside edge stats on that player
6. Repeat as necessary.

I only suggest a minor leaguer because I assume the computer gets the info, but then i don't know what programming the game has for the comp getting inside edge. But just to be safe I'm not using a star.

I've only done this twice and it has worked so far.