We should be *better* than top 10 in yards with Cooper and Zeke. We aren't because we don't hit the deep ball.
That's definitely one of the reasons, yes. In fact, let's say that it is the
only reason, just for argument's sake. Here's the thing: That
still doesn't make it the "fundamental problem" of the offense. I think you just overstated a bit, and don't want to back away from it, for whatever reason.
Since yards per drive don't always indicate success at reaching the red zone, I researched the percentage of all 32 teams' drives that reached the red zone (or scored TD from outside it) after the Cowboys traded for Cooper.
Weeks 8-18, 2018
% of drives that reached red zone
(includes TD scored from outside red zone)
1 NO 47.6
2 KC 41.5
3 LAR 40.2
4 IND 39.4
5 CAR 38.9
6 NE 38.5
7 DAL 37.7
8 TB 37.5
9 ATL 37.4
10 SEA 36.7
Could Dallas have been *better* at reaching the red zone? Of course. But logic eventually has to come into this at some point. Over the exact same stretch of games with Cooper, Dallas ranked 29th in red zone TD%. There's a difference between something we need to do
better and the main thing that we
don't do well at all.
Let's say that in 2019, the combination of the extra deep throws themselves and the threat that they represent moves us up just ahead of the Chiefs to 41.6% in drives that reach the red zone (or score TD from outside it). Extrapolating Cooper's 11 games to 16, Dallas had 58 such possessions (of a total of 154) in 2018. That would only equal six extra red zone possessions (64 instead of 58) to get to 41.6%. To those extra red zone possessions we bring our same 29th-ranked red zone TD% from 2018. In other words, our ability to score in the red zone hasn't improved at all, but we've become the league's 2nd-best at
getting into position to score.
(You could say that more big plays would decrease the duration of each drive, giving us more total possessions per game, and thus more than six extra red zone possessions in order to move up to 2nd place. In fact, that would be a more realistic scenario. But that would also give our opponents extra possessions too, meaning the defense would be spending more time on the field. So I'll stick to six extra possessions.)
Even improving from 7th to 2nd would only add
1.9 points per game to our 2018 average.
6 extra red zone possessions @ 4.975 points each = 29.9 points / 16 games = 1.9 points per game
Now keep the same number of red zone possessions, but increase the touchdown rate to that of 2nd place, which was the Chiefs (again) at 73.9%. The Chiefs scored 5.974 points per drive that either reached the red zone or scored TD from outside it, which was almost exactly one full point per drive more than the Cowboys. If Dallas has the same number of these possessions as it did with Cooper last year (3.6 per game), but increases its scoring rate to that of the 2018 Chiefs, then that's an extra
3.6 points per game.
I know that's a lot to digest, but the Cliff's Notes version is that being an elite red zone offense would be worth almost twice as many points per game to this offense as being elite at moving the ball into scoring position. The simple reason for that is that this offense was already pretty good at moving the ball in 2018, but was terrible in the red zone. Improving on something you already do well may be an easier fix, but you're better served by fixing something that doesn't work at all.
FWIW, I think we'll be better at both in 2019. I think 2018 revealed that our red zone success of the previous two years had little to do with Scott Linehan, and was more about the absence of Frederick, Witten, and Bryant. Frederick's return, to a lesser degree Witten's return, the continued improvement of Gallup, and the red zone success we saw toward the very end of last season all give reason for hope. And from what we've heard recently, we can expect a more aggressive offense in the first 3 quarters of games this year, instead of waiting until the 4th quarter.