The Seahawks offensive line has been "plagued" by injuries all season. Abraham Lucas was put on injured reserve right away and with other injuries to Cross, Haynes, Lewis and others, there has been a different group of starters every week. They even cut Curhan after he started a couple of games...is our OL talent really there? Can they block for both the passing and running game?
That is why Geno is having a hard time. Maybe he is "uncomfortable" not being able to relax in the pocket, while knowing that he could get hit or hurt at any second.
The Seahawks also want to play a "hard hitting" running game, but unfortunately the running backs end up paying the price. Careers ended for Chris Carson, Rashaad Penny, Thomas Rawls with plenty of other injuries along the way. Another poster here referred to "using the Running Backs as Battering Rams".
(edit) Marshawn really "delivered the fight" to the running game in a way that only a few humans could. We keep looking for him...but, both K9 and Charbonnet have that fighting spirit...
If we had a consistent OL group to depend on, nobody would be complaining about Geno and we would be rushing for 100+ yards every game.