I love the identity you lay out here, those are the Rams I want to see! But sadly I can't agree because we've seen zero indication the Rams will do this. They just re-signed Kendricks for a lot more than he was worth (in my opinion) while crowing about his "swiss army knife" value -- translation: the Rams are committed to the hybrid TE/H back/FB role. He and Harkey will continue to swap lining up in the lead back and end line spots.
Harkey has become a very good blocker, but Kendricks is inconsistent. And even at his best he's a screen blocker, not a punishing blocker, and not a great fit for the vision you lay out. The perfect world would be get a true FB to move Harkey to a full time end blocking role and use Kendricks receiving skills more. But the only true FB that got a look last year was Kadeem Jones, and he wasn't given much chance and when injured they didn't rush out to replace him. There were very interesting FB free agents available this year, for example could have stolen Tukuafu from Seattle for dirt cheap, but passed.
I guess the mauling guard might come in tonight's draft, but again the only tangible evidence for the Rams priorities is a team that did nothing about being saddled with Davin Joseph for an entire season.
I don't really think I can get on board with this being true, either. Nobody ever says how Emmitt Smith made the Cowboys o-line so great, it's always the other way around. Maybe there's exceptions to every rule and I cross my fingers it will be here.