its a bug did you download the draft classes or did you make ur own? I think this has a lot to do with it. Example I won the nba championship with Lakers traded to the 15th pick drafted Al-Farouq Aminu. When season strated I added a headband but notices his age said 1990 instead of 20. You have to change all the draft pick ages before the start of season if not they will all retire at seasons end. Kinda lame I know I'm going to have to restart because after my 2nd season all the rookies but Al-Farouq Aminu retired.