This team got dominated upfront for a few reasons. Poor play by two subpar vets in Blythe and Havenstein on the right side together. Whitworth's age showing, resulting in about a 10 point drop in his grading over the previous two years. A significant number of injuries that basically decimated the o-line. A subpar coaching effort by Kromer and Dickerson who IMO are both probably on a short leash this year because they claimed guys were ready when they clearly weren't. All the vet acquisitions in 2017 and 2018 made Kromer look better than he was. When asked to coach up a bunch of rookies he failed. Their poor execution in basic fundamentals was appalling last year.
Why do I feel better about these guys now? Because they now have the experience, something that they showed a lack of last year. Because now Kromer and Dickenson will teach them from day one a new blocking scheme so they won't have to transition to on the fly something they never practiced in TC (again a huge flaw in Kromer's coaching). This o-line has the athleticism to execute an interior power gap or interior zone scheme. Blythe is perhaps the only exception and is why IMO they were allowing him to walk until Allen got sick. I expect to see the Rams become primarily a between the tackles run attack. It's why IMO it plays to the strengths of both the RB backups in Brown and Kelly.
The actual strength of Havenstein is his run blocking. Normally a RT must be good blocking on the second level for a run to be successful. Havenstein has shown he can execute those difficult blocks. They will need to protect him on passing downs with a TE.
I have to agree if the Rams are indeed moving to a power gap run attack Warford might not be a good scheme fit due to his marginal athleticism. His contract expectations might also be a problem. Having watched Shelton in college I really would love to see him get his shot. For a big man, he moves well. His flaws are basically coachable and bodybuilding related. Technique wise he came in above average in that area. His weight gain is probably related to his strengthening regime which is where he really needed to focus. He can play both OG positions as well as center. He's actually a better option than Edwards who tends to play too upright due to his height.
Tremayne Anchrum IMO looks more like a center than an OG. He has the arm length you would like in a center as well as the quickness and smoothness in his movements. It will be interesting if they transition him to center. His physical metrics scream center, and his general athleticism would serve him well at that position. So when people say they didn't draft a center, they, in fact, might have drafted a developmental (2+ yrs) center. Trewyn might not be working out for them. Either way, both guys probably make the PS this year.