Saying they sucked with Lamar only applies at the very beginning of the game; he did, after all, complete 18 of 24 for 204 yds and 4 touchdowns and no INT's.
What you say about the offensive line is more accurate. It needs a lot of work and Ricard didn't look ready, I agree.
The defensive line is the big problem. They need a lot of help all across it.
Another problem is that they'll have 20-some free agents after this year.