I found this on the internet and it works for me:
http://forums.nba-live.com/viewtopic.php?f=141&t=82475
I know this is kinda semi-legal and involves 3rd party software, but until a patch comes out, it eases much of the pain I felt in My Player mode thus far.
I used Jesus' game sliders on this one and have gotten much more realistic results in My Player.
Works for PC only!