PFF had the Rams OL rated 27th at the end of 2016. Of course these rankings are somewhat subjective. FootballOutsiders rated the Rams OL 29th last year. So pretty safe to say they were a bottom 5 unit.

So if the OL improves from bottom 5 to mediocre (18th) other things offensively should start to click more. Not an elite unit by any stretch, but the idea of the Rams adding 5-6 PPG becomes very possible based on that type of OL improvement.