IMHO, this isn't bad at all. We have added Shelton, , Valentine, Clayborne, Hightower, Rivers, Langi and McClellan to the front seven that entered the playoffs as a top defense in the last part of the year.
We all expect us to draft a LB or two.
BASE DEFENSE (25)
DE: Clayborne, Flowers [Wise, Lee]
DT: Brown, Shelton [Valentine, Guy, Butler]
LB: Hightower, Van Noy [Rivers, Roberts]
CB: Gilmore, McCourty/Jones/Rowe [C Jones]
S: McCourty, Chung, Harmon
ST: King, Ebner, Richards, Grigsby
And, yes, I do indeed believe that this defense is better than the defense that had us as the best team going into the playoffs (with at least one draftee to come).