You are underrating Fitz. In the era you are referencing, we have 1) Dak, then 2) Fitz, then everybody else. Right now, I'd put Relf and Rogers together behind Dak and Fitz. Both really good at some things and limited at others. Both have showed flashes of being great (Rogers against Auburn in 2021, Relf against Michigan) and games where they looked extremely limited (Rogers in Auburn and Ole Miss 2022, Relf in maybe UAB in 2011?; Wake Forest? Not sure on those). And I'm not sure there is that much difference between them and Tyler Russell. We never gave Tyler Russel a solid receiver corp plus the offense was a bad fit. Madkin and Taite are hard to judge because they were basically in a different era for MSU football. I think either one could have been as good as Relf and possibly a good bit better if they got the coaching and scheme that Relf got.
But as of right now, without the benefit of his Senior season, Rogers has been a good QB for us just like Relf. Both of them were a good fit for the system we had at the time. If Rogers improves this year and the offense works, he could catch or even pass Fitz. If he struggles and just can't operate the offense, not sure it affects his place that much. I think he's still around Relf, who also would have struggled if the offense had changed too much from the power spread.