Both you and the OP make some valid points. The thing is, a lot of people on this board tend to zero in on one thing and just can't seem to see past that. (A. We need a franchise QB. B. We need a big DT. etc...) Thing is, both FA and the Draft are a crap shoot at best. Your competing against all the other teams in the NFL to improve your team. The thing that impresses me about the OP is that he is looking at other options that many here are not. The thing that I don't agree with is that this team really does need to find impact players. I'm hoping that we go after some hard hitting LBs myself(first over all pick? maybe....maybe not). I just want to see the run stopped because I think it is the #1 glaring weakness of this team. How we get there does not really matter, because the variables are always changing. There is no such thing as fixed formula that will work.
I think Nix is not one to allow himself to be fixated on one player. He wants impact players and is willing to find them wherever they may be available and that's a good thing. His pickup of Chan Gaily and now Dave W. are good moves. His pickup of Dwan Edwards and Shawne Merriman on the open market are good moves. His pick up of Carrington, Moats and Troupe in the draft are good moves. The thing is, he seems to be looking for ways to improve at every corner. We'll just have to wait to see what he has up his sleeve next.