Nuggets need J.R. Smith on the floor

Despite his off-the-court issues, Smith gives the Nuggets a much-needed spark off the bench. Garrett Ellwood/Getty Images

Each Monday throughout the NBA season, ESPN Insider will investigate the latest trends in the NBA. Basketball Prospectus' Kevin Pelton is keeping an eye on all the numbers and will have a first look at how players, teams and the league as a whole are evolving.