Most definitely. It is THE reason our defense has been so weak. Prior to his injury, we could mount a four man rush and still stop the run. Since his injury, we can't get enough consistent pressure on the QB. They can dink and dunk and we have to hang back because we'll give up the deep ball if we don't - and still do anyways because the QB has time. He brought enough pressure that it allowed the other three to penetrate, not giving the routes time to develop, which meant the secondary could play tighter.
This defense requires a great pass rush.
Richard Sherman doesn't just wanna get in your head, he wants to build a vacation home there.
R. Sherman: "I don't want to be an island. I want to be a tourist attraction. You come, I take your money & you go."