It isn't that there are no prospects. It is that there are no blue chippers. We have 3rd and 4th line potential guys. We also have 4th-6th D guys. Unfortunately those are the spots usually filled very easily through free agency so there is no real need for them being developed in the system.
People shouldn't be surprised we don't have any blue chippers right now. We traded 2 firsts for pronger (3 with Sbisa), JVR graduated and so did Giroux. You aren't going to draft blue chippers in the 3rd round.
Edit- I just noticed that JP is over 1100 years old. College must be a lot harder now than when I went.