NBA 2K15 has a “points of emphasis” system which provides an excellent way to manage style of play. From a gameplay perspective, controlling your team’s offense and defense have been updated. If you’ve played 2K14, then you should be at home with the controls.
During games, you can watch a play-by-play counter of what’s happening and decide to jump in at any point. These are displayed through dialogs that take place in your office. Sometimes players will approach you and complain about the intensity of practice or their role on the team. Being GM means that you have to deal with the needs of the players.