It's pretty impossible. Look at their schedule.
NFC West records are padded this season because they play the NFC East and the AFC East, and the Seahawks still have a 4-game stretch of at Eagles-Giants-Jets-at Washington coming up.
That said, it would be nice if they don't win the division so the pick is in the early 20's as opposed to the late 20's.
I mean the playoff picture could easily see a 10-6 squad not get in. Eagles pass rush could cause that Seattle team real issues. If the Bucs, Saints, Cardinals, Rams and Seahawks all win 10, somebody is on the outside looking in.
Given Seattle still has games against Rams and Cardinals left, one other stubbed toe, and they are 10-6....
That team is also a Russel Wilson injury away from being about as good as we are. If what happened to Brees were to happen to Wilson, I can't see Seattle winning a game without him the way that defense is playing.