Stats comparisons from last year to this year, 3 games in (FYI - this year you played much better defenses in the first 3 games than last year):
2018: Rushing - 710 yards, Passing -- 924 yards, Total yards - 1634, 170 points scored
2019: Rushing - 539 yards, Passing - 1147 yards, Total yards - 1686, 151 points scored
Very similar totals, but clearly more reliant on the pass game to get you home than last year. As th season goes on, those gaps will continue to broaden.
However, last year's early passing stats were built almost entirely on home run balls, which better defenses took away. This year's passing stats are built almost entirely on an NFL style attack, with an emphasis on short passes and allowing your receivers to make defenders tackle them in space.
My early takeaway:
1 - Last year you were taking the top off of the weaker defenses with these plays, which opened up the running game, producing better rushing stats.
2 - Last year's strategy was not sustainable against better defenses. If they were able to take away the home run ball, the rest of the offense became pretty mundane.
3 - This year's offense is a lot less vulnerable to that weakness against better defenses, but it puts all of the pressure on Tua. It would be better if you established a running game to compliment the short passing game to avoid getting Tua killed.