After 18 years in Baltimore, John Harbaugh faces his biggest challenge yet: Turning around the New York Giants

By Kyle Feldscher, CNN (CNN) — The start of the new NFL season always brings a few things that take getting used to. Perhaps one of the most head-turning sights will be walking the sidelines of MetLife Stadium during the final game on Sunday. John Harbaugh will be making his regular-season debut with the New