So you're saying that Lou's plan to replace two big pieces on the roster with "depth" players was a reasonable move.
I'm saying that you don't have any idea what you're talking about, and I think that you're probably intentionally trolling, and I don't have any idea why. But assuming this isn't one of the times you're being insincere just to do it:
No. Vishnevski played 3rd pair minutes. Rachunek, if anything, was an attempt at a low cost Rafalski replacement, but Rachunek played against weak competition - he did rather well doing so though, not sure why he fell out of favor. Then I remember the coach and the consonant that Rachunek's name ends with.
In general, replacing players with free agents is a terrible solution. Free agents are normally a bad buy, and they're especially a bad buy when you're off panicking because you lost a top player.