I understand your premise, but i think with this team, assuming the defense improves the way most anticipate, 24-26 ppg will be more than enough to get them there. Especially playing in the NFC West, where offenses aren't exactly high powered. I get that both Seattle and SF scored right around that same number last year, but given the improvements that we expect on both sides of the ball with this Rams team, I think you might be overestimating how much its gonna take.
But hey, if they somehow manage that, even better.