Indiana is reportedly losing one of the best running backs coaches in the business. reported that Deland McCullough, who had been at IU since Kevin Wilson started in 2011, is leaving the Hoosiers to become USC’s new running backs coach.

As recently as yesterday, McCullough was on the recruiting trail with the Hoosiers. He even broke the news about Jon Gruden coming to Indiana’s spring game.

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During his six years at Indiana, McCullough developed a pipeline of dominant tailbacks. Three straight years, he coached a 1,000-yard rusher that left early for the NFL.¬†The likes of Tevin Coleman, Jordan Howard and Devine Redding all thrived under McCullough’s tutelage.

McCullough would be the second major departure of an assistant coach for Tom Allen. IU offensive line coach Greg Frey left the Hoosiers to join Jim Harbaugh’s staff at Michigan.

Three¬†weeks after signing day, McCullough was an integral part of IU’s recruiting staff the last six years.

IU has yet to confirm McCullough’s reported departure.