Monken has adapted to his roster and done a lot of different things in his time but Harbaugh is still the head coach. If he made Mornhinweg and Trestman more run heavy than they'd ever been, my guess is that we'll be seeing something closer to the 2 TE Georgia version than the chuck it deep Jameis version.
Umm... think you might want to go back and look at the Trestman/Marty timelines.
2015 - 676 pass attempts, 383 rush attempts. That's like a 64/36 pass:run ratio. That was the 2nd highest pass ratio in the NFL that year, and would have still been the second highest ratio in 2022 also.
2016 - we had the #1 pass ratio in the NFL, and by a comfortable margin. Almost 65% passing. And that's with both Trestman and Marty sharing duties, since Trestman was fired mid-season. We threw it 679 times.
2017 - we dropped down to a more normalized 55/45 split, which was a product of both Marty being a full-time play caller AND the fact that two years of being total shit offensively was a good enough indication that maybe we should be more balanced. We were still 11th in pass attempts.
2018 - Joe made 9 starts under Marty, and was on an identical pace in terms of pass attempts as the 2016 season. He averaged 42 attempts/game in the first 9 weeks, and we were competitive too.
I'm not going to go back and look at pre-Harbaugh era, but I'm highly confident that the '15-'18 timeline with Marty and Trestman is, by far, the most pass-heavy offense this franchise saw in the Harbaugh era, and very likely the entirety of the franchise. And that's with Billick running the show before him.
If we look anything like these numbers in 2023 in terms of passing volume, it'll be a failure on multiple fronts, and we'll lose a lot of games. You can't be in the 65% pass ratio range and be successful in this league for more than maybe a season, and even then its dicey. Even the KC's and Buffalo's of the world, who are viewed as pass-heavy, low production running games, have quite a bit more balance than that.
We'll throw it more no doubt. But we're not going from a 48% pass ratio to a 65% pass ratio, unless something went dreadfully wrong.