He doesn't need to break 300 yards. He just needs to keep doing the incredible things he is doing.
He threw for 31 TD / 16 INT last year. About 2-1. He is at 16 TD / 1 INT this year. He would need to throw for seven straight interceptions without a TD to drop the TD/INT ratio to 2-1.
He took 39 sacks last year and is at 9 this year. Did the OL drastically improve? Or is he making decisions faster, including dumping the ball when needed.
His completion rate is up, his YPA is up. Everything is incredible.
Those 3 games you are dogging on him for he threw for 296, 294, and 292 yards. 6 TD / 0 INT. About 65% pass completion. That should be more than enough to win if the defense does their job and the run game has any success at all.