Even though I know it's totally meaningless, I think a rookie game would be great if it could be programmed! It would be a fantastic thing for the managers who are sacrificing the occasional or a point differential boost for the sake of training up a rookie to see their rookie(s) take center stage in an all-star sort of game. But this should be for first- and second-year players only, or maybe make it a 19-and-under game.
Don't ask what sort of Chunks they are, you probably don't want to know. Blowing Chunks since Season 4!