Interesting, and this kind of sounds somewhat similar to what I was thinking as well. The great Bill Walsh once said that rushing atts. plus completions were important to him. I believe he was referring to getting the ball in the hands of the playmakers.
Some background stats from the last 5 yrs. I've researched:
Over this period the Bills have averaged 29.5 rush/atts./game, the league has been 26.4. Yes of course we are running team, but we had only 18.8 comp./game, where as the league was 22.1/gm. Totals 48.3 atts+comp/gm. vs league avg of 48.5.
Now our divisional rivals from the coast: 27.9 rush and 24.1 comps for a total of 52.0. Interestingly, the one year the Pats didn't make the SB and lost to Denver, the numbers were slighty above average at 49.2 . They are typically at 52-53. Their playmakers get an extra 3-4 chances a game to make a play.
So, I'm thinking with an increase in accuracy due to the offseason improvements on offense, fewer drops and increased experience by Allen
that we can add 3 more comp/gm. I believe getting the ball in the hands of our playmakers those extra times can only help. How many times did we drop a pass that could have been a first down that keeps the drive going and leads to points.
Finally, at 12.5 /comp (last year 12.3) and 3 more comps for 16 games it equals an improvement of 600yards. I think 3500 yards or around 220-225 yards a game is a reasonable expectation.