Editing fictional players and too dirty uniforms

Xbox

It seems that the uniform wear/dirtiness is too much. Uniforms don't really get that dirty playing on natural grass unless there's rain and certainly not playing on turf fields as I've noticed.

Also there are a few fictional roster players (placeholders?) that indicate they can be edited but I've found they can't be saved nor can you change the number. One of these is on Auburn's roster and is #7. #7 is retired for the late Pat Sullivan and hasn't been worn since 1971. Along with #88, #34 and unofficially #2.