There isn’t a narrative. Payton and McCarthy’s results are exactly the same, including at QB in the last 5 seasons.
Dak Prescott missed most of the season twice in both of McCarthy’s losing seasons in Dallas. McCarthy also had to coach up below average QBs after Dak’s injuries. Coaching up below average QBs to 7-10, 8-9, or 9-8 with missed playoffs is still a disappointing season.
Without a franchise QB or above average QB, Payton and McCarthy had the same overall results. With a franchise QB, they also have the same results.
Out of all of the candidates, McCarthy has the most playoff experience and best HC resume. He or Glenn can be great hires with the right staff and roster personnel.