If the Niners do lose before that Seattle game, and end up resting some of their starters, they are at least equipped with a very good back up QB to still be capable of winning that game. If it comes down to that.
If Seattle loses before that game, and they rest some of their starters, then they wouldn't likley be capable of winning that game with a back up QB.
If Seattle loses before that game, and they rest some of their starters, then they wouldn't likley be capable of winning that game with a back up QB.