Question: Which defensive coordinator of the Arizona Sun Devil's Football also succeeded Mike Cavan as coach of Southern Methodist University?

Context articles: 1997 SMU Mustangs football team
Tom Mason (American football)
Sun Devil Marching Band
SMU Mustangs football under Mike Cavan
1998 SMU Mustangs football team
SMU Mustangs football under Tom Rossley
Mike Cavan
Defensive coordinator
Keith Patterson
Phil Bennett (American football)

The 1997 SMU Mustangs football team represented Southern Methodist University in the 1997 NCAA Division I-A football season as members of the Western Athletic Conference (WAC) in the Mountain Division.
 They played their home games at the Cotton Bowl in Dallas, Texas.
 Under first-year head coach Mike Cavan and ten years after the NCAA's 1987 "death penalty" on SMU football, SMU finished the 1997 season with a 6–5 record and completed their first winning season since the football program resumed operations in 1989.
Thomas Ray Mason (born 1956) is an American football coach and former player.
 He served as the interim head football coach at Southern Methodist University (SMU) for the final 10 games of the 2014 season upon the resignation of June Jones, compiling a record of 1–9.
 Before that, he had been SMU's defensive coordinator since 2008.
 Mason also served as the interim head football coach at Boise State University for the first ten games of the 1996 season, compiling a record of 1–9.
The Sun Devil Marching Band (SDMB), also known as The Pride of the Southwest, is the athletic band of Arizona State University in Tempe, Arizona.
 The Sun Devil Marching Band motto is “Expect Great Things.”
 The acronym EGT is inscribed on a sign that hangs from the director’s podium towering over the band's practice field, and is a symbol of the high standards that band members strive to meet.
 The ASU Band program, which includes the Marching, Pep, and Dixieland bands, is a part of the Sun Devil Athletics department.
 The band is currently under the direction of Director of Athletic Bands James G. "The Hammer" Hudson, who took over the program in 2006.
 The Sun Devil Marching Band is a major ambassador for Arizona State University and the state of Arizona.
 Each year almost 500,000 people are entertained by the band, which plays at home football at Sun Devil Stadium and as a pep band for basketball games at Wells Fargo Arena, homecoming, bowl game parades, other community events in the Valley, across the country, and even abroad.
Mike Cavan was the coach of the Southern Methodist University's football team from 1997 to 2001.
 He compiled a 22–34–0 record, and was succeeded by Phil Bennett.
The 1998 SMU Mustangs football team represented Southern Methodist University in the 1998 NCAA Division I-A football season as members of the Western Athletic Conference (WAC) in the Mountain Division.
 They played their home games at the Cotton Bowl in Dallas, Texas.
 Head coach Mike Cavan returned for his second season leading SMU, following a 6–5 season in 1997, SMU's first winning season since the 1987–88 SMU "death penalty" was handed down by the NCAA, the highest punishment possible in the association.
 SMU finished the season 5–7 (4–4 WAC), but SMU vacated 10 games after Steve Malin was found to have been ineligible due to academic fraud.
Tom Rossley was the coach of the Southern Methodist University's football team from 1991 to 1996.
 He compiled a 15–48–3 record, and was succeeded by Mike Cavan.
Mike Cavan (born April 15, 1948) is a former American football player and coach.
 He served as the head coach at Valdosta State University (1986–1991), East Tennessee State University (1992–1996) and Southern Methodist University (1997–2001), compiling a career college football record of 89–83–2.
 Cavan played as a quarterback at the University of Georgia from 1968 to 1970 and was an assistant coach there from 1977 to 1985.
A defensive coordinator is a member of the coaching staff of a gridiron football team who is in charge of the defense.
 Generally, along with the offensive coordinator, he represents the second level of command structure after the head coach.
 The defensive coordinator is generally in charge of managing all defensive players and assistant coaches, of developing a general defensive game plan, and of calling the plays for the defense during the game.
 At higher levels of football (college and professional), the defensive coordinator typically has a number of assistant coaches working under him who are responsible for the various defensive positions on the team (such as defensive line, linebackers, or defensive backs).
 You can look to the links under references for some of the best defensive coordinators in history according to Bleacher report.
 John Chavis (American football) and Jeremy Pruitt are among two of the great college defensive coordinators in recent history.
 There are Also many NFL greats that can be found in the references.
 People like Wade Phillips and Vic Fangio are among the NFL greats at defensive coordinator.
 Determining how good a defensive coordinator is has to do with a number of things such as defensive statistics, the type of attitude their players took to the field and also what other coaches and players had to say about them.
Keith Patterson (born May 20, 1964) is an American football coach.
 He is defensive coordinator for the Arizona State Sun Devils football team.
 Patterson was previously the defensive coordinator and linebackers coach for the West Virginia Mountaineers.
 Before one season at West Virginia, Patterson was previously the defensive coordinator for the Arkansas State Red Wolves on January 4, 2012, only to resign from the position six weeks later to join the West Virginia coaching staff.
 Prior to his arrival at Arkansas State, Patterson was elevated from defensive coordinator to interim head coach following the resignation of Todd Graham on December 13, 2011, at Pittsburgh.
Phil Bennett (born December 3, 1955) is an American football coach and former player.
 He is the defensive coordinator at Arizona State Sun Devils.
 Prior to this position, he served as the defensive coordinator for the Baylor Bears from 2011-2016, and was interim head coach of the Pittsburgh Panthers during their 2011 BBVA Compass Bowl win over Kentucky after serving as defensive coordinator of the Panthers for three seasons.
 Prior to coaching the Panthers, he served as the head football coach at Southern Methodist University (SMU) from 2002 to 2007.
 Before his stint at SMU, he served as an assistant coach at seven different colleges.