“I always think right now,” Rivers said during Thursday’s shootaround. “I’ve been in this league too long. And I always go back to [the Celtics’ 2008 NBA championship team.] Kevin [Garnett] and I talk about it all the time. I remember the first year [2007-08] during training camp [with the Celtics] we had a meeting and they were saying, ‘Man, we have to get it together. This might not be the year. But by next year, we might…’ I said, ‘Next year? Are you guys kidding me? Next year one of you can get hurt.’ “I know it’s short. I know it’s going to be hard to get it together. But having said that, the time is always now.”