This is true, but the team we have on the field this year is much much better than the one from 2009/2010. The signings of Antrel Rolle and Keith Bulluck. Kenny Philips, Boley, Bernard, Canty are all healthy, Shawn Andrews (a starter on any other team) - we can now keep the DE's fresh throughout games (Tuck, Osi, Kiwanuka, JPP, Tollefson).
If we can keep the 1st string on the field we'll be fine. Last year we were plagued with injuries on defense.
I am considered about our running game though.