From "informative read" thread:
On the fourth down call:
UT had seven players to block six Pitt defenders. The Vols lined up with five offensive linemen, a tight end and an H-back. Pitt had four down linemen and two linebackers on the edges.
The two linebackers crashed on Wright to make the tackle. If it was a read-option play, it appears Hooker should’ve kept the ball and run it around the end, or the blocking scheme should’ve accounted for all defenders.
“The communication up front to what we’re doing and how we’re blocking and how we’re reading things didn’t transpire the way that we need to,” Heupel said.