I just posted an article about this, but it's one of my patented very long posts so I do want to give a shorter thing of my two cents here.
The offensive line was the biggest culprit for our shortcomings in the first half of the previous season, and it's not debatable. Sure, Flacco needed to play better in certain games but the offensive line had three utter liabilities in the run game starting and we were running a one dimmensional offense. This made us especially easy to prepare for. This is a FACT. The first half of the season is probably much different if we have different starters at the C and RT positions(not like we had two possibilities on the roster already smh), and frankly Flacco probably doesn't lose his job and we probably run away with the division and possibly secure a bye if we have a run game. I know "woulda coulda shoulda" but the oline killed whatever chance the first half of the year had with a running game far more than the QB or any of our RBs(as mediocre as Buck Allen is).
The funny thing is, that this really didn't change too much in the second half of the season either, where the offense became a gimmick and utterly unsustainable. Greg Roman really is a genius, because he knows how to mask the deficiencies of the other players, when the tape does suggest that Hurst, Skura, and Lewis are ALL liabilities in the run game. Plus, read option makes things ten times for difficult for the opposing defenses, especially the opposing safeties. But we had the opposite issue. This was another one dimmensional unit, but we could run the ball and not pass. And once Gus Bradley figured us out, he could exploit the weaker personel in the trenches and Lamar really had no chance.
It's a culmination of terrible coaching and piss poor personel. The offense all season was hilariously one dimmensional and frankly, someone NEEDS to be fired over this. We need to acquire more talent on interior offensive line, and we need to actually run a pro style offense to see what Lamar is capable of as a passer, or if he can garner any kind of consistency.
If we improve the oline, 2019 should be a good year for us, because even without a gimmick we should be able to run the ball just fine and we have a defense that is aggresive and very good. But we cannot keep doing what we did in 2018. It's unsustainable..