I dont know about Meech. Lebda held down an NHL job with the wings at least. Meech did nothing except lose us Quincy (along with Chelios)
Meech and Lebda play a similar style of game, except that Meech actually knows about the defensive zone and can play defensively if necessary. The main reason Meech never took Lebda's spot is that the two were so similar, and the two were always close enough that it wasn't going to just be handed over to Meech.
As for Quincey; Meech did lose us Quincey, but only because Meech outplayed Quincey consistently while they were together in our system.