It bugged the hell out of me that I couldnt edit coach names and apperances to import some NCAA coaches for example.
I found a way to do this, this is how
1. Choose a player that is going to retire and is likely to wind up as a staff candidate (ex. Steve Nash or Andre Miller)
2. Edit the players name and relink to another face you want your coach/staff to have (only the names in the database will show)
3. Your coach/staff with desired name and face will show up after the first season.
Now, i dont know how inportant this is to people but i thought it was fun, and decided to share it

Sorry bad english, not from America.