By Alek Arend Jim Harbaugh has made an official decision. J.J. McCarthy will be his starting quarterback in Week 3 and likely for the rest of this season. That means Cade McNamara, who led the Wolverines to a Big Ten title and College Football Playoff appearance last season, is heading to the bench. Unfortunately, most Michigan fans don’t appear to be big fans of McNamara’s. McCarthy started the first half of last Saturday’s game between Hawaii and the Wolverines and it was a 42-0 blowout at the half. As a result, Harbaugh started McNamara for the second half. McNamara was booed as he came ont…