This is on the 49ers first drive of the game. Protection will be good and CJ will have a clean pocket against a coverage that CJ sees everyday in practice since SEA and SF run a similar defense.
To CJ's left is a commonly seen route combination run against Cover1 and Cover3 where the #1 and #3 run Curls, with the #2 running a Fade.
To CJ's right is a vertical stretch with orange and the backside Dig (red) that is very effective against Cover3.
vs Cover3
CJ takes the snap and looks left. He then pump fakes it to Taylor. The two Curls (purple/yellow) are not going to get it done on 3rd & 11. The Fade route from the #2 is defeated by the sideline deep 1/3 (the Fade from #2 is mainly for Cover1).
With CJ looking left, and pump faking left, this manipulates the weakside Hook defender (blue) to slide towards the strongside. In the picture below, CJ is now throwing to Taylor. But with a clean pocket to step up into, all the hard work has been done to set up the backside Dig.
Taylor's route had little chance to convert, and with a pump fake to draw defenders to Taylor, it now has no chance in hell.
+6, punt. Versus Cover3, look to the strongside to freeze the underneath defenders, then target the backside Dig. While this isn't easy to do, it's against a coverage that CJ sees a lot in practice and should be able to execute.