The two biggest problems that I saw at the beginning of the season did not get addressed: huge, huge deficiencies at linebacker and offensive line. Also, the Rams don't ever play angry. Did you notice how Ezekiel Elliot and the Cowboys defensive line seem to play angry? The linebackers aren't good tacklers; they stand and wait to make tackles instead of running through opposing players.
That, and why do opposing teams seem so much bigger along the offensive and defensive lines than we do? Am I the only one here who thinks that?
I also think the Rams play the ball aggressively on defense, the DBs don't jump routes, etc. It's like their strategy is to contain instead of disrupt the opposing offense.