"Every line of code for our online game was rewritten this year," said Jeff Thomas, the director of development at Visual Concepts, the 2K in-house studio that makes NBA 2K. "It was a huge undertaking by our top team here, and we put our top team on it because we knew we had to get results."
They didn't, to put it bluntly. For some players, it was impossible to find a match; for others, many connections were terminated just as the game had barely begun. If it was a ranked match, someone was saddled with the loss for quitting. Features from the previous version of the game were not included in this year's, further enraging the community. Rumors of paid downloadable content with a heavy online component turned into another set of moneygrubbing allegations.
The explanation for all of this is within that old codebase, Thomas said. And that old codebase goes back all the way to the days of the Dreamcast.
Interesting read. It also mentions that while My Crew was left out this year, it may return.