The Rangers will have a rough couple of weeks ahead of them. Which means the real New York Rangers are going to stand up.
When Christian Ehrhoff was placed on waivers there were reports the New York Rangers were going to think (key word there) about picking him up, and use the team's defensive play against the Penguins to make that decision. The Rangers shut the Penguins out 3-0 in a game where their "top pairing" got roasted the entire night but was bailed out by Henrik Lundqvist.
In turn the Rangers decided they didn't need the free defenseman (who while slipping in play this year, would still be a better option than some of the daily dressed defenseman) and didn't make a claim.