My concern with Kubiak is that he appears to call inventive and diverse plays for the first 10 or 15 scripted plays but he becomes stale and conservative when the script is done and he starts calling plays in the moment. Obviously, those calls can be made and run despite the injuries since he does it with the scripted plays so it seems that he has a conservative steak that takes over once he is calling plays off the script. This week was an example of that. They didn't finish on the first two drives, but the play calling was diverse and kept the Rams guessing which resulted in moving the ball down the field. That seemed to end once he was done with the scripted plays.
I think Kubiak is a solid OC, but I don't think he's anything special as a play caller. He may be one of those guys who is great at designing an offensive scheme but is only an average play caller. I'd be fine if he came back as OC under a defensive HC or Rizzi, but I'd probably be happier if we hired an offensive minded OC that calls a less conservative game or used an offensive scheme more from the McVay line than the Shanahan line.