By Chris Rosvoglou Former Ohio State quarterback J.T. Barrett is ready for the next chapter of his career. On Saturday, the Detroit Lions officially announced that Barrett joined their staff as an offensive assistant. This is the first time in Barrett’s career that he’ll be coaching for an NFL team. For the past few years he has been trying to find a long-term home as a quarterback. Barrett has been with the New Orleans Saints, Pittsburgh Steelers and Seattle Seahawks. He even spent time on the Edmonton Elks. Barrett was an outstanding player at Ohio State, finishing his career with 9,434 pass…