“It’s a fairly dramatic change from the way U.S. schedules have worked historically,” Silver said. “So it’s not the change we want to make lightly. And so we’re deep into discussions right now with our 30 teams about the right way to innovate and integrate those kinds of changes into our regular season. In fact, as we went down that road, the thinking initially was we would only do it for our 75th anniversary, which is the 2021-22 season.”