Mike Smith (born June 13, 1959) is an American football coach who is the defensive coordinator for the Tampa Bay Buccaneers of the National Football League (NFL).
 He is the former head coach of the NFL's Atlanta Falcons, a position he held from 2008 to 2014.
 He previously served as the defensive coordinator for the Jacksonville Jaguars between 2003 and 2007.
 During his tenure as the head coach of the Falcons, Smith became the franchise's winningest coach by number of wins in addition to being the recipient of the 2008 NFL Coach of the Year Award by the Associated Press and was also voted NFL Coach of the Year Award by the Sporting News three different times 2008, 2010 and 2012
Perry Fewell (born September 7, 1962) is the American football defensive backs coach for the Jacksonville Jaguars.
 He last served as the defensive backs coach for the Washington Redskins of the National Football League (NFL).
 Before that he served as the interim head coach and defensive coordinator of the NFL's Buffalo Bills.
 He was named interim head coach after serving as the team's defensive coordinator from 2006 to 2009 under head coach Dick Jauron.
 Most recently, Fewell was the defensive coordinator of the New York Giants.
The 2017 Wyoming Cowboys football team represents the University of Wyoming during the 2017 NCAA Division I FBS football season.
 The Cowboys are coached by fourth-year head coach Craig Bohl and play their home games at War Memorial Stadium.
 They participate in the Mountain Division of the Mountain West Conference.
 This is their first year with new defensive coordinator Scottie Hazelton, who was previously an NFL linebackers coach with Jacksonville Jaguars for three seasons and was also Bohl's defensive coordinator for two seasons at North Dakota State.
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.
Melvin Tucker (born January 4, 1972) is an American football coach and former player.
 He currently serves as the defensive coordinator at the University of Georgia.
 Tucker was the interim head coach for the Jacksonville Jaguars of the National Football League (NFL) for five games in 2011.
 He has worked as the defensive backs coach at the University of Alabama and as the defensive coordinator for the Chicago Bears of the NFL.
Paul Casey "Gus" Bradley (born July 5, 1966) is an American football coach who is the current defensive coordinator for the Los Angeles Chargers of the National Football League.
 He was the defensive coordinator for the Seattle Seahawks from 2009 to 2012, and the head coach for the Jacksonville Jaguars from 2013 to 2016.
Todd Wash (born July 19, 1968) is an American football coach who is the defensive coordinator for the Jacksonville Jaguars of the National Football League (NFL).
 From 2013 to 2015 he was the defensive line coach and run game coordinator for the Jacksonville Jaguars.
The Jacksonville Jaguars season was the franchise's 17th season in the National Football League and the 9th under head coach Jack Del Rio, who was fired on November 29 and replaced on an interim basis by defensive coordinator Mel Tucker.
 The team had hoped to improve on their 8–8 record from 2010, but exceeded their loss total in Week 13, and were officially eliminated from postseason contention.
 With the 10th pick in the 2011 NFL Draft, they selected quarterback Blaine Gabbert from the University of Missouri, and Gabbert would replace Luke McCown as the starting quarterback in Week 3.
Scottie Hazelton (born December 19, 1973) is the current defensive coordinator of the University of Wyoming Cowboys.
 He was named to the position on Jan 10, 2017.
 He was previously the linebackers coach at USC in 2012 and the defensive coordinator of the 2011 FCS National Champions, North Dakota State Bison.
 Hazelton was tutored as a defensive coach under the guidance of then North Dakota State head coach and current Chicago Bears assistant Bob Babich and Gus Bradley who is currently the head coach of the Jacksonville Jaguars and former Bison assistant coach.
John Pease is a retired football coach who held various positions in the pro and college ranks.
 Pease coached most recently for Utah where he was the defensive coordinator during the 2015 season.
 He was the defensive coordinator for the Jacksonville Jaguars in 2002.
 Prior to his promotion with the Jags, he served as their defensive line coach from the team's inception in 1995 through 2002.
 He served two stints with the New Orleans Saints as their D-line coach from 1986 to 1994 and 2004 to 2005.
 He last served as the Assistant Head Coach/Defensive Line Coach for the University of Utah Utes football team from 2009 to 2010.

Question: When was the defensive coordinator that replaced Jack Del Rio on Jacksonville Jaguars born?
Answer: January 4, 1972