This is a nice post about "Effective" Cap Space, explaining many of the various things teams have to consider when planning for the cap. The example used is the Jets, making the assumption that they will be trading Revis, but there is a lot of good stuff in here. The post concludes, "The reality is there are only 5 or 6 teams left that can actually spend on some of the more quality players who are still floating in free agency. Money is really that tight in the league right now." The Eagles would be one of those teams.