Not sure this is entirely accurate?
Liles averaged 19:19 after coming to the B's...20:34 for CAR. He was a #4 D down the stretch and was a Top 4 for CAR as well.
Stempniak had 16g/25a/41 pts in 63 games for NJ and played primarily with Henrique and Cammy. He only had 3g/7a in 19 games in Boston, but his 51 point total would have put him 5th on the B's in scoring last year. He ended up 4th for NJ in scoring, despite only suiting up for those 63 games. Stemp was a Top 6 player and scorer for NJ last year and was asked to play the same role in Boston. People like to white wash it now, but last year at the time of the trade, he was better than Filppula, and right there with Vrbata.
So, claims that those guys were "plugs" who were asked to fill roles that they were not accustomed to on their previous teams is nothing more than revisionist history.