My Detroit Free Press story from May 21, 2018 with comments from WIllie Roaf on Frank Ragnow, winner of the Willie Roaf Award. Three years later, Ragnow is the highest paid center in the NFL with his new contract, four years for $54 million. By TOM SHANAHAN By now, the slicing and dicing of Frank Ragnow's NFL measurables is complete. The Detroit Lions examined the height, weight and quickness of the 6-foot-5, 312-pound center from Arkansas. They used…