The flood gates of free agency open Sunday night around the NBA. For the Nuggets specifically, the flood — or to put it more accurately, the stream — of offseason additions will hinge on one major outcome in particular, one that will begin to materialize at 4 p.m. MT. That’s when all NBA teams are allowed to negotiate with free agents, including Kentavious Caldwell-Pope, Denver’s valuable fifth starter the last two seasons. Caldwell-Pope declined his $15.4 million player option this week, making him an unrestricted free agent.