One of their top players? How about one of their most replaceable players. Ray was fucking great here, but he slowed the offense down with all of the screen plays Doc would run for him. When those plays failed, it usually resulted in a terrible shot clock beating shot by Rondo or who ever is close to him. JET might be a dumbass, but he can dribble, shoot, and provide instant offense off the bench. Ray wasn't going to start when Avery came back anyways.
Then add Courtney Lee, Jeff Green, Sullinger, and Milicic, and that's a pretty good looking team, much more versatile and athletic as well, which bodes well against Miami. If Pierce and KG can hold up to the playoffs, you won't be so confident. Obviously the opposite is true, but right now, you can't tell me that Miami improved more than Boston.
PEACE