I looked at Capgeek, and without knowing too much about their prospects, Carolina now has six defenseman, if you assume Ryan Murphy will make the team, which is what everyone expects. Admittedly I don't know how good some of their NHL roster defenseman are.
That said, I wonder if Carolina is a good spot for one of the Devils' arguably NHL ready defensive prospects, namely Gelinas or Urbom. Jason MacIsaac brought up the idea of trading one of those guys for Victor Rask. Kind of a high risk/high reward prospect, which is probably the best the Devils could hope for, especially considering that the NHL roster is pretty crowded right now.