Short answer - We don't know.
Longer answer - It could be that Rod and Dennis have a couple of lukewarm irons in the fire and are waiting for them to heat up.
For example, the Josh McCown situation.
Or the outside possibility we could squeeze Jon Runyon under the cap (with secondary dominos possibly then falling - like Wells or Oliver Ross).
It may make sense to take a deep breath and cool our jets to get a better sense of how free agency is working out so far. (Example - Last year, the Giants waited til the dust settled before determining what they could pay to bring in Plaxico Burress. They are said to be doing the same thing this year to see how LeVar Arrington's market-value establishes itself).
We could be doing the same thing with guys like Peterson, Arrington or Runyon. And although the prospects of signing them may be unlikely, why paint ourselves into a corner and miss out on a big opportunity by signing Wright or Allen prematurely.