Point is that fans all want a change at center when the team appears pretty much ok with what they have
They definitely like someone on that depth chart. I'm still amazed by that too.
Generally just looking at previous years the Rams have been right about some of these guys (Whit was a brilliant move that I didn't particularly like when they made it, also Corbs worked out way better than I anticipated) but also wrong about a bunch of them (Boom is a JAG and had zero business starting in front of Edwards and the board was correct about that and some other stuff like Demby, or Hav being tried at RG, and so on). So the Rams have not been consistently proving us wrong when it comes to the OL.
Going back and looking at Allen I think his biggest problem was the line calls. I don't think he was ready and we felt that when Blythe came in and did a much better job tying those guys together. But that QB does factor in here too, with this conversation. Goff needed a good line call from his center. I feel like maybe the guy who benefits the most from Stafford coming in here is Allen, who will have someone overlooking and helping his calls. So even though most of the board would be traumatized by Allen being the guy they're high on, I think it's possible they see him as at the very least a stop-gap starter.
And Shelton is interesting too. Like with Allen I'm not particularly impressed with Shelton but if they draft say Radunz in round 2 as our LT of the future (which would be a windfall for us IMO) and stick him at LG it allows for Edwards to move RG and IMO things look a ton better and with OG play that may be good enough to protect a marginal center. It could also be a guy like Meinerz or Green too who they start out at OG with the same effect. Or of course Corbs being moved to the pivot too.
Lastly the fan inside me with his rose colored glasses and two-beer gameday hardhat is hoping that Anchrum is in play. The guy is smart and has said he can play all OL positions. Once again with the QB change maybe that removes enough of the line call pressure to where they can upgrade. I think it all ties together. And IMO that is the difference in their almost casual dismissal of center so far in FA.