Philly had a serious need for depth at linebacker, their corps was walking wounded all year in 2011.
Houston leadership thinks they can get top value for certain players now, they are making moves to open up some room to spend and get younger, and they also believe they have youth ready to step in.
I like the moves, I think they may struggle a bit early on, but by the end of the season they still have a stout defense, with added youth and a stronger future.