Jerry Jones remains the Dallas Cowboys’ biggest problem

The scene was all too familiar. Another embarrassing fall for the Cowboys. These losses now come in all sizes and shapes. Blowouts. Missed kick. Bad coaching. Awful quarterback play. Take your pick. This time: a 47-9 loss to Detroit.The scene was all too familiar. A big loss followed by owner Jerry Jones speaking to the media. He’s done it so many times we get used to seeing it, but these images looked different. What I saw on the screen was someone who looked totally lost for answers. Oh, Jones tried to put up a brave front. When he was asked by a reporter if he was considering firing Mike McCarthy during the season, the Dallas owner replied he wasn’t getting into hypotheticals, and added: “Do you think I’m an idiot?” He repeated it again: Do you?No, Jones is not an idiot. But one thing is clear. Jones has lost his fastball.I’m not saying this because Jones is in his 80s. There are plenty of people his age who are remarkable. It’s not age. It’s something else.The franchise looks…