If you saw the stats of 1st half's versus 2nd halfs of RUssell Wilson and Lynch, you will know.
In the first half when Russell tries to be a pocket passer, LYnch's average is about 2.
In the 2nd half when Russell rushes for yards, Lynchs average is over 5.
In other words, in the first half, when Seattle plays a 1 dimensional game, Defenses knowing Wilson will stay in the pocket will stack up against Lynch daring Russell to throw. In the 2nd half, Russell starts to run, since we are usually behind and defenders now have to guard against Wilson, the pass and as well as Lynch.
Basically our offense boils down to this:
1st half, Russell is pocket passing, Lynch gets crunched, we fall behind. 2nd half, Wilson starts running, Lynch gets Yards we pull out the win.