1) A once-good offensive line got old really fast, starting midseason last year (the major difference between 1st half 2006 Rex and 2nd half 2006 Rex was a distinct difference in the time he had to throw). They were simply awful this year. Several times, teams would send 4 and all of them would get through. Not a strong point in the line. 2) DL injury issues with Harris, Walker, and Dusty Dvoracek, leaving them no choice but to put the 4th string DE (Idonije) in at starting DL for a while. No pressure from the front 4, and the defensive scheme simply doesn't work. 3) Starting DB combo: Tillman, Vasher, Brown, Archuleta. Brown had a career-ending injury week 1, Vasher went down for basically the year week 2 (he played for a bit in the Minny game a couple weeks ago but he's now just shut down for the year), Tillman was gone for half the year with injury, and Archuleta was simply awful from the outset. So, for half the year, they were playing 4th string Ricky Manning Jr. at starting CB, and he's only decent in nickel sets on the slot WR, played Danaiel Manning at the other CB since he was so awful at SS last year (formally known as the guy who left Reggie Wayne alone in the SB last year), and 2 rookies filled the other slots. One of the worst pass defenses in the NFL mixed with a defensive line that couldn't get any pressure made for a bad situation all-around. Even Urlacher was limited with an "arthritic back". I'd like to say the Bears aren't as far away as they seemed this year, but they really need improvements in both lines and healthy DBs to make the jump.