Michigan football: J.J. McCarthy's ascension is nothing short of impressive

The old adage that having two quarterbacks means you don't have one doesn't apply for Michigan Wolverines football. U-M has two capable signal-callers — senior Cade McNamara and sophomore J.J. McCarthy — who the staff believes can bring another championship to Ann Arbor. We break down where McCarthy has improved the most and how impressive his ascension has been.