I don't think it's that quiet. You do have deals getting done. Monster contracts for a couple guys. But the bidding war aspect hasn't really come into play. The big deals may come, but I suspect that teams'll be more interested in keeping their own.
It might only take one BIG move (Nmandi moving out of Oakland or something) to open the floodgates. Teams might have found that a conservative approach to free agency last year felt pretty good.
I may be wrong but don't teams have till Friday both they can no longer match contracts offered.
That may be slowing things down as well.
It is completely understandable that other teams are taking things slow. Not the Cardinals, it is unacceptable they are not taking advantage of the opportunities in front of them. They have the money, the massive amount of urgent needs, and the room to get some good talent. This free agency period will have better talent then what will be available for some time.
If they are trying to get the perfect deal, well then they are niave and stupid. You don't get to have that kind of leverage when your team sucks, and everyone in the league knows it. The Steelers, Pats, Colts, and Packers have earned there leverage through wins, sacrifice, and being a competitive NFL team year in and year out.
If the Cardinals think they have earned any respect for a two year period that is proving to be a fluke, then those front office people are far dumber than I first thought. The only thing they are known for is losing, being cheap, and letting good talent go. They are going to have to do more to get what good organizations get for less.
They have no one to blame but the people in the front office. They have their fan base, stadium, and everything a NFL franchise could ask for. They have no more excuses. They fail now it is because they are ignorant, negligent, and cheap.