Judging by OPs history, this is a thinly veiled bitch fest waiting to happen, but I'll play along. You have valid concerns, that I'm sure many of us share.
Unfortunately it has been beaten into the ground multiple times. There are other forces at play here as well. The salary cap being paramount. I'm not even sure the Rams are under the cap with EJ on the books at this point. Not saying that is why he was traded, but it was certainly a consideration.
What would YOU do if you were running this team? What options are out there right now? This team was built to score points and let the defense learn while pinning their ears back. Injuries fucked that plan to smithereens, so now the D learns the hard way. May end up being better for them in the long run.
If the O can get healthy with a chance to make a run, I LOVE the Rams chances. I would love to see this DL play with a lead. LOVE it. That secondary may just look plenty capable in that situation as well. We shall see.