My "rosier" outlook is based on the two most important areas being improved over last year, which I qualified with IF they are improved. To answer your question, though, I think OL play could be improved with a halfway decent coach and the addition of a seemingly solid player from Alabama. Of course, there's also the possibility that Wiley and Fillip, after a year of starting and another offseason could be improved over their 2021 versions.
For months now, I have been of the opinion that there simply isn't anywhere for this offense (and OL) to go, relative to 2021, but up. It's why I took manhattan's bet on scoring offense being improved and why I think the OL will likely be better in 2022... They literally can't be worse.
End of the day, the schedule is harder than last year, but there are some unknowns that really only provide CU with potential upside (ie, Shrout is an unknown, but he can't be worse than Lewis was last year, and the OL may not be great, but they can't be worse under DeVan than they were under Rod).