Revisionist History going on again. Kellen Moore was a Jerry Jones holdover McCarthy had to keep similar to Garrett being hired before the Head Coach, Son of a Bum. Nobody was going to hire Garrett as a HC back when he was an OC under Son of a Bum (i.e. Ravens). Nobody was going to hire Kellen Moore as a HC under McCarthy (i.e. Bosie St., Carolina, etc.). Only with the Dallas Cowboys in 2020-22 were the only years Mike McCarthy was not calling his own plays since 2000. That is 20 YEARS! Do you remember when they forced Paul Hackett on Tom Landry. It was the end of Days.
There was a power struggle during/after the 2019 season as Jon Kitna, QB Coach, guided Dak to his best statistical season and Kellen Moore was given the hype for the performance. Garrett of course was very familiar with Kitna (who practically won him the HC Job in Dallas when Romo went down again). He knew his job was threatened and brought Kitna in as QB Coach. Because of not making the playoffs Jerry Jones was forced to show Jason Garrett the door as HC. So even though McCarthy wanted Kitna (he is a disciple of Mike Martz and McCarthy and Martz are boys), he was not retained as QB coach because of the 2019 conflict between Kitna and Moore, and Jerry's love grooming of Kellen Moore. Jerry Dumbo GM Jones view Kellen Moore as the new Jason Garrett. He still does. So McCarthy days are number and Kellen Moore is in exile waiting to come back as Jerry Jones new Tom Landry (see Jason Garrett).
Jerry Dumbo GM Jones is playing Game of Thrones with his Arlington Jonesboys team Head Coaching position. Jerry Dumbo GM Jones stays on the Iron Throne.