@skoadam i thought i can because when i downloaded a patch for nba 2k14 (i dont know which one) i played my career and on the rookie showcase wasnt 2013/14 draft class but 2015/16 draft class and i was surprised .but something went wrong with my nba 2k14 so i deleted the patch . Now im trying to put my edited 2015/16 draft class but i dont know how
kinguktu, Oh so you are talking about showcase rookies, well its easy, you must have Draft Projection tab in redmc. I thought you are talking about rookies after first season in mycareer, its also possible to set your own rookies there.
In first column of Projection Tab you have Team, put there team id you want, in second column you have Player, put there Player ID you want. End of tutorial.