Any self-respecting great quarterback will say the same thing. It isn’t the most talented ones that have the most success. Sure, ability plays a big part in that. However, what separates the best from everybody else is their work ethics. Guys like Peyton Manning, Tom Brady, Drew Brees, and Joe Montana were famous for their relentless drive in the film room. They obsessed over the details. Nothing was left to chance. It appears Justin Fields is cut from the same cloth. Longtime trainer Simeon Kelley has documented the Chicago Bears quarterback’s journey from Ohio State to the NFL. He provides updates regularly. His latest via Instagram helped illustrate who Fields…