Washington rookie blueliner John Carlson is worth an immediate trade if he’s available in your pool. He is playing with top offensive players, is on a superb +/- team, and is himself proving to be a good offensive player.
There was some uncertainty heading into the season about whether he would play, how much, and whether he could convert minor-league performance into the big league. It is still a long season with many ups and downs yet to come, but there is no doubt that Carlson’s upside is as good or better than many seasoned blue-chip d-men.