I have XBOX 360 rosters in my locker, GT=Geauxlden
It's the file from Gamerosters with edits made primarily to LSU (hometowns, equipment, etc.) with a few of the same type of changes made to other teams as well. They won't be good for ranked online games because of some position switches, but they should be ok for your dynasty. Feel free to download and tweak to your own personal satisfaction or completely ignore them, lol.