Getty Cowboys coach Mike McCarthy If there is an analyst out there that has some knowledge of how things work in Dallas, it is Jason Garrett, who was the backup quarterback for the Cowboys for 10 seasons, the offensive coordinator for more than three years and the head coach from 2010-19, the direct predecessor of Mike McCarthy, the current coach. So as speculation swirls around McCarthy’s future, Garrett surely has more insight to offer than most. And he spoke about it during the Cowboys’