As far as play calling and QB rapport (as a coach rather than a gofer), definitely with Andy and Kingsbury. My guess is Kitchens probably will be looking for a job in January if, as seems likely, the preseason Super Bowl bound Browns miss the playoffs
Unlike Butler, Fichtner never had another team try to him away as a coordinator and he had not called plays for well over a decade - his sole reason for being OC was lost for the season in week two and now Fichtner has to make the calls rather than just raise possibilities for consideration by the QB.
Not the best of circumstances for a young QB when a pass first OC in 2018 when the QB made the final play call now decides he needs to slam on the brakes.