For those teams left out of the playoffs, there has already been dialogue on the possibility of mandatory summer training camps and regional fall leagues of four-to-five teams that could bridge the lengthy gap between seasons, sources told ESPN. Those are ideas many teams consider vital, and there’s an expectation that the NBA will raise possible scenarios such as these with the Players Association, sources said. “The message was something bigger, reminding people that some teams can’t just re-open the doors in nine of 10 months and so easily sell tickets or a sponsorship without having played basketball for that long,” one high-level Eastern Conference official on the call told ESPN.