With roughly three hours remaining in the NHL trade deadline, Peter Chiarelli is wheeling-and-dealing and making some last minutes moves. Next move: The Boston Bruins acquire two defensemen — Dennis Seidenberg, 28, and Matthew Bartowski, 21,  from Florida in exchange for Craig Weller, Byron Bitz and a second-round draft pick in the upcoming 2010 draft — from Tampa Bay, Mark Recchi deal.

So essentially, Bruins’ general manager Peter Chiarelli is running in place as he trades away an impending UFA defenseman Derek Morris [$3.3MM] — who was brought in to help move the puck — and acquires another impending UFA Seidenberg [$2.25MM].

Seidenberg leads the NHL with 179 blocked shots, and has 2-21-23 scoring totals, including eight power play points through 62 games this season, 116 shots on goal, and log nearly 23 minutes of TOI per game.

So far, the B’s have cleared approximately $1.5MM for the remainder of this season, and nearly $700K for next season with the trading of Bitz. But they still haven’t addressed their needs: depth at defense and a solid scoring option up-front — a top-9 forward.

Now that the ball is rolling, I don’t think Chiarelli is done. If he truly wants to be a buyer and make a legitimate push in this year’s playoffs, he still needs to address their aforementioned voids.