By Rohan Nadkarni Nets. Celtics. Sixers. Which contender scored the highest this offseason? Which scored the lowest? It’s been a strange NBA offseason. Now into the second week of August, there are still big names and restricted free agents lingering that could change the scope of the league. At the same time, it’s unclear if or when any of those dominoes will fall. So we’re going to hand out some offseason grades, even if there are still some moves left on the table. Let’s start in the Eastern Conference. Atlanta Hawks: B-Put me down as a skeptic of the Dejounte Murray trade. While Murray’s t…