One thing I'll say about Kitchens is that he was clearly being groomed for a job like this by Bruce Arians. He experienced success as a tight end coach and then had a lot of success as a QB coach with Palmer. When he was moved to running back coach, David Johnson was emerging and he had to deal with the position after losing the centerpiece of the offense for the season. That's one heck of a resume, showing he understands the details in multiple positions on offense. If not for the lack of play calling, I'd see him as a legit OC candidate.