Start the Game, load your favorite roster and go directly in Association mode.
And upon the Draft class is loaded, open Aleczou Trainer
and click LeBron James face to see the Players names.
Just scroll down until you see the Draft Class names, click one to see his data and then change his CF ID click the drop down "use CF" to yes and just do it one at a time for all of them...
I got this idea because I always downlad draft classes with generic CFs and not all of them have a custom CF and at times they have no faces....
But with this you can change all the generic CFs with a custom CFs......Be patient in changing