Michigan football position to watch this week: The QB's biggest test yet

This week's position group spotlight revolves around a player we only hope to see one of this week, pending garbage time or mop-up duty. Sophomore J.J. McCarthy is going to get his first career road start in a hostile environment without the benefit of Cade McNamara backing him up. All eyes are on No. 9 this week heading into Iowa's Kinnick Stadium.