Note BonifayRam’s comments on Allen if Carberry gets away from zone blocking schemes.
Here’s BonifayRam...
Brian Allen is going into his 4th season on his rookie contract. He offers the Rams a bargain priced experienced OL who has been a starter. Allen came to the Rams with a highly versatile college career with many starts @ 3 interior OL posts most starts came @ LG.
Allen is only 25 yr old & is coming off a serious knee injury in 2019 then followed up with Covid-19 & a setback in his rehabbing event. Allen is not a weak Ol'er in fact he has an excellent pro-day workout & is one very tough mean strong Ol'er. Allen did show that he was not ready to start in a very weak interior OL in 2019 he was starting with Blythe on his right & Noteboom on his left.....one would think that would be one very difficult assignment to overcome.
In this upcoming 4th season, Allen stands to be very competitive fighting for the swing reserve OG position. If the Rams were to move away from the outside-zone running scheme Allen's worth to this OL increases dramatically.
Brian Allen Contract Details, Salary Cap Charges, Bonus Money, and Contract History | Over The Cap
Coleman Shelton is another interior Ol who will be entering his 4th NFL season & is only 26 yr old. He has suited up for 28 Ram gms. Just like Allen, Shelton is a highly versatile OL too, in fact, he started all five OL posts in the college. It does appear that Shelton has much more center in him than any other NFL post. Shelton is an ERFA now which will make him resigning to an ultra-low economy cost $$$ contract guarantee.
Coleman Shelton Contract Details, Salary Cap Charges, Bonus Money, and Contract History | Over The Cap