Davis, Jet and Lester could all go for 100 in any game.
I think this is a bit of romanticizing the run game last year. We had 4 80 yard rushing games by RBs last year, Jet x1, VD x 2, and Lester x 1. VD and Jet did it in one game against UTEP (100 for Jet, 97 for VD), and Lester's was facilitated by a 66 yard house call against UNR and we only had 1 100 yard rushing games last season total. Our QB high rushing total was 49 yards by DougieB against Bryant. This year we've had 9 80 yard plus games, 4 by RBs (Jet x 2, Burrell x 1, Kylin x 1) and we've had a total of 8 100 yard games with a QB
low rushing total of 59 yards of Sluka vs Houston and 4 100 yard games by RBs. We averaged 4.5 ypc last season on a 55/45 Run/Pass split, this season we're averaging 5.7 YPC on a 66/33 Run/Pass split. Last year we averaged about 174 rushing yards per game, and this year we're averaging 249.
The playcalling is totally different when you have a run first quarterback running the RPO and triple option as part of the offense. With Maiava you were running the mesh point on the option as really a delay hand off rather than a true option. We bemoaned (well at least I did) that Maiava didn't run the option well at all and there were times where the read option hurt the offense because it was one dimensional. Having a running option quarterback means that there will be more rushes but probably fewer overall touches to be spread amongst the RBs, but by every metric they're performing
better this year than last.
It's not all sunshine and rainbows, though. Marion has struggled in the red zone this year mightily, but part of that is secondary to having to playcall to Hajj and Sluka's strengths. I also think that Hajj has struggled in traditional 5-7 step drop passing packages. Our passing distribution is MUCH worse this year, fewer passes caught by WRs not named RWIII, RBs, and TEs and as good as we've beein in improving our rushing metrics, some of our passing metrics are worse (%, total yards per game) but the Y/A, AY/A, INT%, Y/C are all better under Hajj than they were under Maiava.