If you can grab Weatherspoon your probably making a good move. Poz may haunt you at some point this season, but i know i get frustrated waiting for studs to show up while waiver guys play really well. Poz hasn't done much to through 3 weeks, i would feel safe cutting him. I'm in the same situation with Ruud, except the waiver wire is really thin, so i'm stuck waiting him out.
Thanks
Bill