Bears defense hits low point of season

Grade: 4

There were some nice blocking contributions from the tight ends Sunday, including Kellen Davis. Tight ends were no factor as receivers.

Running backs

Grade: 3.5

Evan Rodriguez threw some effective blocks, but he ran into the football when Cutler was trying to hand off to Forte in the fourth quarter. Cutler recovered, but the Bears took a loss of 12. That was a critical play.

Forte didn't have a lot of blocking help, but he did not run with much vision or burst. Michael Bush was considerably more effective, though he allowed middle linebacker Bobby Wagner to get his pads lower than his own on the fourth-and-1 stuff.

It was smart of the Bears to split Forte out, get a mismatch with the Wagner and throw to him in the red zone. He has been underutilized as a receiving threat all season.

Offensive line

Grade: 4.5

The line really needs two grades — one for pass blocking (7) and one for run blocking (2).

Cutler took a few hits, but the line did not give up a legitimate sack (they gave up an official sack on the Cutler fumble). Jonathan Scott struggled with Bruce Irvin's edge speed. So has every other tackle Irvin has played against.

J'Marcus Webb had some help, but he still had a couple of bad plays. His false start in the fourth quarter was inexcusable. He is lucky he did not get called for holding Chris Clemons in the end zone — which would have been a safety.

In his first start at left guard, Edwin Williams played poorly, blowing blocks on the fourth-and-1 play in the second quarter and the preceding third-and-2 run.

Gabe Carimi was considerably better at right guard.

Special teams

Grade: 6

The primary objective of the special teams in this game had to be containing dynamic Seahawks return man Leon Washington, and the Bears did that very well with four touchbacks by Robbie Gould, effective punting by Adam Podlesh and solid coverage.

Twitter @danpompei