Well we were really good up front pre 2007 because we had 7 or 8 good players who could spell each other (Taylor, Holiday, Traylor, Carter for Roth, Wilkinson, D. Bowens, Zgonina) while last year we had 3 or 4 good players and the rest were rookies, unproven players or castoffs. I had never heard of Chase Page prior to 2007 and Steve Fifita was an NFL Europa castoff, Paul Soliai was a rookie who needs to gain strength and Rod Wright was out there after not playing for awhile. Factor in no Zach Thomas, when he was expected to be there, and you have a recipe for disaster for run defense. Even on long passing downs our lack of a pass rush usually yielded an easy pickup for our opponents.
I also think conditioning was a factore last year. I know it was week one but I remember our defensive players reeally sucking wind in the 2nd half/OT of the Skins game. I don't expect that to be an issue in 2008.