Graham Harrell was once college football's next big thing. A record-shattering quarterback at Texas Tech that played in, and studied under, Mike Leach's innovative Air Raid offense, Harrell went into coaching after a brief stint at the professional level and earned his first offensive coordinator gig at just 31 years old.

The move comes after Purdue (1-3, 0-1 Big Ten) lost its third straight game after beating FCS school Indiana State in the season opener. The Boilermakers have been outscored 83-17 in the first three quarters of those three losses. They play at Wisconsin (2-2, 0-1) on Saturday.

But Purdue’s offense has struggled since scoring 49 points in the opener against FCS Indiana State, scoring 38 total points in losses to Notre Dame, Oregon State and Nebraska.