AUBURN - Auburn head coach Gus Malzahn said Sunday he will waste no time in beginning a search for a replacement for defensive coordinator Will Muschamp.

Muschamp resigned after one season at Auburn to become head coach at South Carolina.

"I really appreciate Coach Muschamp’s hard work and dedication for our program at Auburn this past year and wish him nothing but the best with his new job," Malzahn said. "I will begin a search immediately for our next defensive coordinator."

Florida State defensive coordinator Charles Kelly is one of Malzahn's targets, according to sources. It is unclear who else he will consider.