"If useless provides severe and appropriate contrast to valuable in fantasy terms, and worthless serves as a suitable antonym of precious, Milan Jurcina could be considered the natural opposite of Erik Karlsson (no offense to Jurcina in general, but as a fantasy asset, he stinks). As a follow-up to last week's look at gems, here's a collection of blueliners who have provided some degree of disappointment to date. And whether we can expect better in the final three months of 2011-12.

• Veteran Mark Streit isn't nearly as bad as his minus-17 would indicate; it's simply an occupational hazard of playing for the New York Islanders. In all honesty, we expected slightly better numbers from Streit following an entire season lost to shoulder surgery. A total of two goals and 22 assists certainly isn't shabby, but the initial hope for a 65-point campaign is starting to feel out of reach. However, maybe not. Still the prime choice as anchor on the Islanders' top power-play unit, the 34-year-old remains on pace for a 30-power-play-point season. Given that role, the proven veteran is always a threat to go on a vicious scoring tear. If you can stomach his plus-minus -- which might improve if goalie Evgeni Nabokov continues to play well -- Streit could finish the season a real high note."