three seasons before returning to college when Wisconsin’s Paul Chryst hired him in 2015.

Martzen was Tucker’s director of player personnel at Colorado last season. He previously had the same role at UCLA in 2018, at Colorado State from 2015-17 and at BYU from 2013-14.

“Geoff is an outstanding evaluator of talent and players,” Tucker said. “He’s a tireless worker and a competitor. He really understands the importance of recruiting and how it’s the lifeblood of the program.”

Cox was Michigan State’s director of executive football operations in 2019 after serving as the assistant director of football operations and camp coordinator the previous two years. He was a graduate assistant in football operations from 2014-16 for the Spartans, a student assistant coach from 2011-13 and a student assistant in the videoroom in 2010.

Harris was a two-year starter at linebacker for the Spartans who wrapped up his career as a captain on the 2015 team that won the Big Ten and reached the College Football Playoff. He had stints with the Cincinnati Bengals and in the CFL and served as an analyst on the Big Ten Network.

“Darien Harris is an outstanding role model for our current players,” Tucker said. “He was a captain on the Big Ten Championship and College Football Playoff team in 2015 and has demonstrated incredible leadership and mentoring skills. He’s a very good communicator and will be able to connect with our team. He recently completed his master’s degree and is ready to mentor our players during their time here on campus.”

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