That's true.
If they were to resign Kelly, they would seem to be set at C for a few years with Kelly at however long he is signed and Rogers who can be held for 3 more seasons. Add in Dingler who can be added to the 40 and has minor league options, and maybe they would be comfortable at C. I don't know that sitting back on that as a default kind of position is wise, but maybe that continuity behind the plate with Fetter as coach and Skubal and Olson as a primary duo in the rotation can be foundational base for the other arms that will be in and out over the next few seasons. That might be particularly useful for the pitching prospects coming up.