I would state it more as "Lauzon COULD BE fine as a 3rd pairing dman"... but with conditions attached.
One of those conditions would be that he play a more composed game, stop jumping up and pinching. He has ZERO offensive talent. Several goalies outscored him this season. What could he be thinking he's going to contribute offensively? And what coach would let him keep doing that? It serves no purpose except to leave us exposed defensively EVERY SINGLE TIME he does it. And then there's the hits. Chasing hits just to get a record or whatever likewise serves no useful purpose. Sometimes a hit helps. But again, he puts himself out of position and exposes us defensively a lot of times when he does it too. He has to pick his spots better. Ask Hal Gill to give him some lessons maybe. Then he COULD BE fine as a 3rd pairing D.
The other condition would be that we had a more settled lineup and weren't in the process of bringing in younger players with more upside. But as it is, we have Stastney and Wilsby who won't be waiver exempt next season, and we have Molendyk coming. Maybe even if we're really lucky, Chistyakov at the end of next season. Those are all young players who skate very well in a modern NHL style, and they need ice time and opportunity to develop NOW while our team is rebuilding. We need to invest in those players who have better upside given where the franchise is in its current competitive downturn. If you start to lose or underdevelop those young assets in order to keep rolling out an "ok 3rd pair" veteran like Lauzon, then you've lost sight of the goal.
So those conditions to me add up to: get rid of Lauzon ASAP. The guy may be "ok" in the right situation or with the right utilization and tutoring, but that's definitely not OUR situation right now!