The Trojans job came open when Tommie Robinson left to go to LSU earlier this month.
He’s the second highly regarded assistant coach to leave recently for a high-profile program. Offensive line coach Greg Frey left last month to join the Michigan staff.
Under McCullough, the Hoosiers developed a knack for producing thousand-yard rushers. Devine Redding did it in 2015 and ’16. Jordan Howard also did it in 2014. Tevin Coleman was a 2,000-yard rusher in 2014.
Coleman and Howard are both now in the NFL.
McCullough’s success earned him Big Ten running backs coach of the year honors in 2014 by BTN.com.
McCullough had previously coached at Miami of Ohio. He was a standout running back at Miami in the early 1990s, rushing for 4,368 yards.
This means head coach Tom Allen has to once again go into hiring mode. He’s already hired a new offensive coordinator (Mike DeBord), quarterbacks coach (Nick Sheridan) and offensive line coach (Darren Hiller) as he begins his first season running the program.
The quarterback coaching positioned opened when Shawn Watson left to become Pitt’s offensive coordinator.