Ann Arbor – Before preseason camp began, Michigan running backs coach Tyrone Wheatley frequently referred to his position group as a "work in progress."
Wheatley's criteria for what he's looking for from the Michigan backs don't vary much from what most coaches seek. But Wheatley's bottom line is that he needs to develop production from a group that includes juniors Derrick Green and De'Veon Smith, and USC transfer Ty Isaac. Drake Johnson, recovering from a torn knee ligament suffered in the Ohio State game last November, will be part of the mix when he can fully participate.
The Wolverines haven't had a consistent threat at running back since all-time leading rusher Mike Hart, whose last season was 2007.