I feel like we've used the Read-Option effectively so far this season. During the regular season, use it mainly as a decoy with it going to the running back most of the time. In "big games", leave the ball in Russell's hands more and let him either make plays with his feet or even with his arm. Preserve his health for the playoffs but still allow him to keep it enough as to where Marshawn can still be effective and defenses can't sit on him getting the ball every time, although they have at some points during the season. Still, I'd rather it be Marshawn getting drilled a few yards deep in the backfield rather than it be Russell.
Then, in the playoffs, you play with nothing to lose. Russell keeps it a bit more and now the defenses aren't completely ready for it. There's no way they could be, it goes against everything they've seen on film, for the most part. A) You've succeeded in keeping Russell healthy through the Regular Season while still not completely taking away that facet of his game and B) Now defenses have no clue what's happening to them as Russell is destroying them with his legs, his arm, and most importantly, his mind. Unstoppable.