Michigan coach Jim Harbaugh emphasized yet again the offensive hiccups are not because of one player, but the entire unit and pointed at the “low-hanging fruit” for always singling out the quarterback when things go wrong. Harbaugh, appearing Wednesday morning on the “Jamie and Stoney” show on 97.1 The Ticket, was asked about quarterback John O’Korn, who will make his third start of the season Saturday night at No. 2 Penn State. He took over when starter Wilton Speight was injured in the first quarter at Purdue. To illustrate his point, Harbaugh detailed the precision required from the snap to the hold for kicker Quinn Nordin to have the success he’s having making field goals. “If that’s the case in the field-goal unit, imagine what it’s like in an offensive unit,” Harbaugh said on the show. “It’s the low-hanging fruit saying, ‘It’s the quarterback, it’s the quarterback, it’s the quarterback.’ He’s either making the field goal or he’s missing it. “It’s far more complex than that. I know you guys get that and so do most fans. That’s what we’re focusing on, and as coaches and players, and we’re putting our best people on it, getting all 11 playing with great precision.” Harbaugh was then asked about fans who are asking why backup quarterback, Brandon Peters, a redshirt freshman, isn’t playing.