Obviously this is true on its face, but we Rams fans have been almost mentally conditioned over the Fisher years to accept mediocre player performance as if there's nothing that can be done about it. Meanwhile, you got Pittsburgh starting a guy out of the army and Seattle starting a college basketball player at left tackle...
Obviously gimmicks are not answer, but the point is the low bar of the standard of player execution the Rams accept while other teams seem to more urgently try to replace a bad position by throwing the proverbial kitchen sink at the problem.
To their credit the Rams usually do have Plan A, B, and C for most things but have had more than their share of bad luck and busts -- for example, their attempts to solve the center position included free agent, draft picks, open competition, etc., and it all still failed. The major problem I see is that once these plans fail and a player becomes entrenched, but is obviously not doing the job, Fisher moves with the urgency of a glacier to rectify it as if just "oh well, we tried"... Scott Wells-itis...
I'm just not a believer that the pool of people that can play in the NFL is as limited as that. If a guy isn't cutting it and flashes no reason why he will improve, it's time to try someone else at the position -- whether they come from the 2nd string, the "limited talent pool" of free agents, or from stocking shelves at the local Hy-Vee... Under Fisher it seems an underachieving, mistake-prone player is instead the Energizer Bunny, he just lets them keep going and going instead of benching and replacing fast enough in my opinion.