Yes.
I don't think there is much dropoff from Allen to Shelton, if any at all. It's a wash because Shelton is probably better in the run game and would likely improve with more play time in pass pro. Both are subpar so Allen will leave in FA.
Corbett happens to play a position where we have depth. OG we have pieces to absorb his loss. I am not even remotely worried about losing Corbs because I think the Rams value him more than he is worth. Rams love the guy, I think he's average at best so again little dropoff and next man up. This is the price of a star studded lineup. You cannot keep all the solid types, gotta let some of them go.
Where I get concerned is LT. And I don't think the Rams have decided btw, this playoff run will determine which way they go. If Whit returns for example and we crush the next two opponents while he plays well and then he wants to return for 2022 they probably let Boom walk in FA. Or if Boom handles the job the rest of the way and excels he will probably be the guy. Rams are a meritocracy there IMO. Even when they have preconceptions when the play on the field speaks they tend to go that route. Especially now that Kromer is gone.
Now we could say that too much turnover is bad for an OL and I agree with that. But this has been building while they milk out Whit's career. So there is definitely a decision pending with LT and I don't know which way they will go just spitballing here.
What I would like to see, or what I think would be ideal is the Rams keeping Whit around on a super cheap contract and spending the FA money they would have spent on Boom on Scherff instead. I have always wanted him in horns and he would be our next leader among what would be a pretty young group of linemen. And keeping Whit around you can work in whichever guy you think might be our next LT. If Boom gets a big payday we get a round 3 pick. But I realize they probably won't have money to chase a guy like Scherff.
If the Rams let Boom, Corbett & Allen go, I certainly don't see finding money for Scherff as a problem.
Our team has gotten to within one game of the Super Bowl with our current OL, and that includes Noteboom getting plenty of snaps, so unless Carberry feels that the 26 year old Noteboom & Corbett have no more room to grow at their positions, or they hold out for more money than what's reasonable, I believe they will both receive contract offers from Snead/Demoff. As for the 28 year old Allen, unless he's willing to sign a shorter term 'prove it' type contract, perhaps the savings Shelton offers is enough to make that change, but following our Blythe ordeal from the last few years and Allen's past injury concerns, unloading Allen & Corbett without a viable back-up in place really hurts depth at Center. I also don't see the fascination with either Evans or Anchrum at this point as a potential starting replacement for Corbett at RG, ... where have they proven anything ?
Now, I've been a big advocate for Scherff for a couple years, although until we have a clearer idea of how much available CAP the Rams can create with contract extensions and whether Whitworth retires, anticipating what free agency changes are coming will be a difficult task, but I believe even re-signing Boom & Corbett may leave us with money for Scherff.
A couple of weeks ago I posted a possible 2022 OL with Scherff at RG and Corbett moving back to LG where he was stationed in 2019, so I could be quite happy with :
LT) Noteboom, Edwards
LG) Corbett, Anchrum
C) Shelton, Corbett
RG) Scherff, Anchrum
RT) Havenstein, A. Jackson
jmo.