Hayes, a 30-year coaching veteran with previous coordinator experience at three BCS institutions, was instrumental in the Wildcats' resurgence on defense in 2011 during his first year on the staff, while Clements has been an integral member of Snyder's staff for over a decade while working with the Wildcat defensive ends.
Cox brings 20 years of college experience with him to Manhattan, most recently serving three years as linebackers coach at the University of Washington.
A University of Iowa graduate with extensive Big 8 and Big 12 coaching ties, Hayes just completed his 23rd year of coaching experience at the collegiate level and participated in his 14th career bowl game when the Wildcats advanced to the 2012 AT&T Cotton Bowl.
"Coach Hayes, in his first year here, had a significant role in the continued improvement of our defense and brings a great deal of experience to the program," Snyder said. "He and Coach Clements work very well together."
Tutoring the K-State secondary and serving as the pass game coordinator, Hayes helped Nigel Malone become an instant playmaker at cornerback as the junior was named a Walter Camp All-American after leading the Big 12 with seven interceptions. David Garrett, Tysyn Hartman and Ty Zimmerman all earned All-Big 12 honors in 2011 from their positions in the defensive backfield, while the Wildcat defense overall ranked fifth in the Big 12 in total defense, second in interceptions (18) and second in turnover margin (+12) in 2011.
At Oklahoma, Hayes was the defensive coordinator and secondary coach. He helped the Sooners to a pair of nine-win seasons and three bowl games, including a win over Virginia in the 1991 Gator Bowl and a victory over Texas Tech in the 1993 Hancock Bowl.
He was the Assistant Head Coach and secondary coach for two seasons at Texas A&M. He helped direct the Aggies to a combined 17-7-1 record and trips to the Hancock Bowl in '89 (lost to Pittsburgh) and the Holiday Bowl in 1990 (victory over BYU).
Hayes worked for nine years as an assistant coach under Donahue at UCLA (1980-88). He was the secondary coach in 1980-81, then was promoted to co-defensive coordinator/secondary coach from '82-88. In nine seasons in Westwood, Hayes was part of a Bruin program that won four Pac-10 Championships, played in three Rose Bowls and eight bowl games overall, went 7-1 in bowl competition and finished among the top-5 nationally five times and among the top-20 eight times. The Bruins never won less than seven games during Hayes' nine-year tenure.
Clements, a Kansas native and K-State graduate, will enter his 11th season overall at Kansas State as an assistant coach and his fourth under Snyder since his return to the sidelines in 2009. Entering his first season as the new run game coordinator, Clements also will continue to tutor the Wildcat defensive ends.
"Coach Clements has been a loyal and highly competent member of our program for many years and is more than deserving of this advancement," Snyder said. "He has been a great asset to our program for many years." Clements tutored All-Big 12 defensive end Meshak Williams last season as the Wildcats made significant strides on defense, particularly in the running game. K-State ranked fifth in total defense and fourth in rush defense in the Big 12 last season.
In 2009, Clements coached All-Big 12 defensive end Jeffrey Fitzgerald and helped a Wildcat defense improve from 117th nationally in 2008 to No. 39 in total defense. Fitzgerald went on to sign a free-agent contract with the Kansas City Chiefs after collecting 40 tackles, 10 for losses, and 7.0 sacks as a senior to lead the Wildcat defensive front.
Clements has been a part of 12 bowl games as both a player and coach at K-State and served a total of 10 seasons on Snyder's staff, the final six as an assistant coach in charge of the defensive ends. He also served as the Wildcats' recruiting coordinator in 2004 and 2005.
In his first year mentoring Kansas State's defensive ends in 2003, Clements' unit helped the Wildcats lead the nation in sacks in 2003. The unit was also integral in helping K-State finish the year sixth in the nation in total defense, eighth in scoring defense, 12th in pass efficiency defense and 17th in rushing defense. It marked the second straight season that the Wildcats finished in top 10 nationally in both total and scoring defense, and the seventh consecutive year that K-State ranked in the top six in total defense.
While at K-State, Clements coached one of the most prolific defensive ends in school history, Andrew Shull, who ranks among the top 10 in three sack categories in school history and was a second team All-Big 12 selection in 2003.
And Clements' touch also continued in 2004 and 2005 as Scott Edmonds was named second team All-Big 12 by the Dallas Morning News in 2004 and Alphonso Moran garnered Freshman All-America and All-Big 12 honors in 2005.
Clements began his coaching career at K-State in 1999, spending the first of two seasons as a student assistant before moving up to a graduate assistant role working with the secondary from 2001-02.
A standout player in his own right, Clements came to Kansas State as a walk-on before earning a scholarship prior to the 1996 season. He went on to earn four letters and appear in 41 games during his career, finishing with 107 tackles, including 18 for loss and 7.5 quarterback sacks.
Cox, a 1989 graduate of the University of Idaho, spent the 2009-2011 seasons as Washington's linebackers coach. Prior to joining the Huskies, Cox worked two seasons (2007-08) for the St. Louis Rams, coaching the secondary and linebackers.
"Mike brings experience and knowledge as well as the appropriate intrinsic values to our program," Snyder said. "He is a quality person, a caring and competent teacher, a hard worker and works very well within a unified system. Our players will have a great appreciation for him."
Prior to tutoring Cort Dennison to All-Pac-12 honors in 2011, Cox coached one of the conference's top linebacker groups in 2010. Senior Mason Foster led the league and finished second in the nation with 163 total tackles, most by a Pac-10 player since the UW's James Clifford in 1989. Foster earned first team All-Pac-10 and first team All-America. Meanwhile, Victor Aiyewa finished first the conference and seventh in the nation in tackles per loss, while Dennison was seventh in the league in total tackles.
In his first season as the UW linebackers coach in 2009, Cox helped oversee one of the Huskies' strongest units.
Washington's 2009 linebackers corps was led by veterans Donald Butler, E.J. Savannah and Foster. Those three combined for 193 tackles, including 94 from Butler, who was a second-team All-Pac-10 selection.
Cox also helped coach a defense that made vast improvements over the previous season as opponents' total offense was reduced by an average of 62 yards per game and opponents scored 12 fewer points per game than in 2008.
Cox, a native of Coeur d'Alene, Idaho, joined the UW staff from the St. Louis Rams, where he worked for two seasons. In 2007, he was a defensive quality control/defensive line coach before moving to assistant secondary coach in 2008. After a mid-season coaching change, he became linebackers coach for the Rams.
Before his time in the NFL, Cox spent four seasons as linebackers coach at Michigan State, where he was also recruiting coordinator in 2006.
He coached the linebackers for five seasons at Louisville (1998-2002), helping the Cardinals to consecutive Conference USA championships in 2000 and 2001. He coached three All-CUSA selections and, in 2000, was part of a defense that forced an NCAA-best 37 turnovers. The 2002 Louisville team was 17th in the nation in rushing defense and 22nd in total defense.
From 1995-97, he was on the staff at Utah State, where he coached a pair of All-Big West linebackers, David Gill and Tony D'Amato. In 1995, Gill broke Utah State's season record for tackles with 168. Utah State won back-to-back Big West Conference championships in 1996 and 1997.
As an assistant at Idaho (1987-94) coaching linebackers and defensive line, Cox helped his alma mater to a combined record of 73-26 (.733) from 1987-94, winning four Big Sky Conference championships and finishing in the top 10 five times. In 1994, the Vandals led the Big Sky in rushing defense, allowing only 65.3 yards per game.
Cox earned four letters as a linebacker at Idaho from 1983-86, starting for three seasons. He played for head coaches Dennis Erickson and Keith Gilbertson. He still ranks among the Vandals' all-time leaders with 252 career tackles.
Cox earned a bachelor's degree in general studies from Idaho in 1989. He and his wife, Jill, have three children, Zac, Jake and Addison.