1. Couldn't stop the run. Need more talent on the DLine
2. Couldn't pressure Goff. Need more talent on the DLine.
3. Dak was mediocre, needed to be better.
4. Playcalling was not good. Example: Running into a stacked middle on 4th down. Oh, and into what might be the best DLine in the league.
5. Lack of aggression on D. It looked like we were playing prevent the whole game.
6. Lost the battle at the LOS. Both sides of the ball. This one ties in w/ 1 and 2.
There are many smaller reasons, of course, there always are, but these are the biggies.
A lot of people are underestimating how bad the defense was, and how good the offense was in this game. That's if each team played to its own and the other's averages.
The Dallas offense averaged 2.06 points and 33.35 yards per drive during the regular season. The Rams defense allowed 2.13 points and 32.62 yards per drive. So based on the regular season, on their 8 possessions in this game, the Cowboys should have scored 17 points and gained 264 yards.
Surprisingly, Dallas scored 22 points and gained 308 yards.
The Cowboys defense allowed an average of 1.93 points and 31.71 yards per drive. The LA offense averaged 2.79 points and 38.99 yards per drive. So based on the regular season, on their 8 possessions in this game, the Rams should have scored 19 points and gained 283 yards.
Shockingly, the Rams scored 30 points and gained 459 yards.