The Bears defense may be aging meaning that several of them are nearing the end of their primes, but other than Urlacher, I don't see any players where their age would dictate a decline from last year's performance. Idonije: 30 Toeaina: 26 Adams: 31 Peppers: 31 Briggs: 30 Urlacher: 33 Roach: 26 Tillman: 30 Jennings: 27 Harris: 29 Wright: 23 Would I prefer that the 3 best players on the defense be 26-27 instead of 30-33? Sure but none of those people besides Urlacher are at an age where you could reasonably expect a decline over last year. Now when evaluating the Bears defense over the next 3 years, you could say that they are aging of course. In fact, assuming Wooten comes back playing at a similar level as he was in training camp, I would think the defense can be better than last year's. Major Wright has gotten mixed reviews in the preseason, but I think he can ultimately be better than Manning. Jennings should improve over last year, Wooten and Melton give the Bears some nice depth on the D-line. The thing everyone should be worried about on the Bears defense is the linebackers. If you injure any of the 3 starting linebackers on the Bears, they are immediately screwed, as there is absolutely no depth there. There is only one backup linebacker on the Bears roster currently that has ever played an NFL game before, Brian Iwuh. The other guys are almost exclusively undrafted FA rookies.