I feel like I should quote the fictitious Col Nathan Jessup here.
Face it, there is still a widespread belief that Jason Garrett is holding the Dallas Cowboys back as head coach. He is seen as doing little more than clapping on the sidelines during games and bungling most of the few decisions he does make. Mostly, so the meme goes, he just gets his marching orders from Jerry Jones and endlessly obfuscates in press conferences. There is a large group of fans and some outspoken members of the media who have been calling for Garrett’s dismissal for years, and up until the four-game winning streak resurrected the season for Dallas, it was widely assumed that he was gone after this year.