Question: Who is the son of the son of former Saints coach Bum Phillips that coached for both teams in the Falcon, Saints rivalry?

Context paragraphs:
Andover–Exeter rivalry: The Exeter–Andover rivalry is an academic and athletic rivalry between Phillips Academy (Andover) and Phillips Exeter Academy (Exeter), bearing many similarities of tradition and practice (as well as athletes) to the Harvard–Yale rivalry as Exeter traditionally educated its students for Harvard, much as Andover traditionally educated its students for Yale (despite being in the same state as Harvard).  Today, Phillipians and Exonians continue to matriculate in large numbers to both Harvard and Yale, as well as many other top universities.  The athletic rivalry between these two schools began with baseball, and football soon followed the same year.  Today the two schools face each other in several sports every fall, winter, and spring trimester.  The rivalry is America's earliest between preparatory schools.  The two schools were also two of the three schools (the other, Lawrenceville), who became the three first schools in the United States to form secondary school lacrosse teams in 1882.  Similar boarding school traditions include the Choate–Deerfield rivalry, Hotchkiss–Taft rivalry, the Blair–Peddie rivalry, the Hill–Lawrenceville rivalry, the Groton–St. Mark's rivalry and the Loomis-Chafee–Kent rivalry.

Bum Phillips (opera): Bum Phillips is an opera in two acts by American composer Peter Stopschinski.  Kirk Lynn wrote the English language libretto based on Bum Phillips' memoirs "Bum Phillips: Coach, Cowboy, Christian".  The opera was conceived by theater director Luke Leonard and commissioned by Monk Parrots, Inc. as described in a 2014 "Sports on Earth" article titled "A Night at the "Bum Phillips" Opera".

1981 New Orleans Saints season: The 1981 New Orleans Saints season was the Saints' 15th season.  Hoping past success would bring a bright future to New Orleans the Saints hired Bum Phillips to be their new head coach.  With the first pick overall the Saints draft Heisman Trophy winner George Rogers out of South Carolina.  Rogers won the Offensive Rookie of the Year, as he rushed all-time rookie record of 1,674 yards.  However, the Saints would continue to struggle finishing with a 4-12 record.  Despite the team finishing with a bad record, they did have one special moment of the season when they upset the Cincinnati Bengals, who would go to the Super Bowl during the season.

Morten Andersen: Morten Andersen (born August 19, 1960), nicknamed "The Great Dane", is a Danish former American football kicker and All-American at Michigan State University.  He is the all-time leader in games played in the NFL at 382; in addition, he also holds the distinction of being the all-time leading scorer in NFL history, and when he retired he was the all-time leading scorer for two different rival teams; the New Orleans Saints, with whom he spent 13 seasons, and the Atlanta Falcons, with whom he spent a combined eight seasons.

Falcons–Saints rivalry: The Falcons–Saints rivalry is a divisional rivalry in the NFC South of the National Football League (NFL) between the Atlanta Falcons and New Orleans Saints.  The series is by far the oldest and most established rivalry in the division.  Founded one year apart, the Saints and Falcons were the first two NFL franchises in the Deep South (Washington, Dallas, and Miami being arguably southern but not in the "traditional" Deep South).  They have shared some important players, such as kicker Morten Andersen (the leading scorer in New Orleans history), Bobby Hebert (who quarterbacked for both teams in the 1990s), and Joe Horn (the Pro Bowl Saints receiver who left for the Falcons in 2007).  They have also drawn coaches from the same families, and even shared a head coach: recent Falcons coach Jim L. Mora is the son of longtime Saints coach Jim E. Mora, and former Falcons and Saints coach Wade Phillips is the son of former Saints coach Bum Phillips.

New Orleans Thunder: The New Orleans Thunder was a professional American football team that played during the 1999 season as part of the Regional Football League.  They played their home games at Tad Gormley Stadium in New Orleans' City Park.  The team was announced as one of the league's charter members on February 25, 1999.  For their lone season, Rex Stevenson would serve as head coach for the preseason and first two games before being replaced with former Saints' player Buford Jordan who completed the season as the Thunder's head coach.

Franklin's Gardens: Franklin's Gardens is a purpose-built rugby stadium in Northampton, England.  It is the home stadium of Northampton Saints.  The stadium holds 15,249 people.  The four stands are: Tetleys Stand; Elite Insurance Stand; Church's Stand; and Barwell Stand.  It is also a Northampton conference centre as well as the only UK Aviva Premiership Rugby ground with its own cenotaph, the setting for a moving ceremony every Remembrance Weekend.  At every game, a modified version of "Run Boy Run by Woodkid" plays alongside a montage video of the Saints in action.  Geoff Allen, a former Saints player, usually takes the role of announcer at home games.

Bum Phillips: Oail Andrew "Bum" Phillips (September 29, 1923 – October 18, 2013) was an American football coach at the high school, college and professional levels.  He served as head coach in the National Football League (NFL) for the Houston Oilers from 1975 to 1980 and the New Orleans Saints from 1981 to 1985.  He was the father of NFL coach Wade Phillips.

Buccaneers–Saints rivalry: The Buccaneers–Saints rivalry is between the Tampa Bay Buccaneers and New Orleans Saints.  The two teams met for the first time in 1977.  The expansion Buccaneers had been winless over their first two seasons to that point, and entered the game with a collective record of 0–26.  Tampa Bay upset the Saints, earning their first win in franchise history.

1981 Houston Oilers season: The 1981 Houston Oilers season was the franchise's 22nd overall and the 12th in the National Football League (NFL).  Bum Phillips was fired as head coach during the off season for failing to reach the Super Bowl, and replaced by Ed Biles.  However, the Oilers defensive problems would catch up with them as they finished with a disappointing 7-9 record, as Earl Campbell fought through injuries to rush for 1,376 yards.  After a fast 4-2 start, Houston would struggle in the second half, going 3-7 in their final 10 games, including a critical loss to the New Orleans Saints, who finished 4-12 in 1981.

Supporting paragraphs: Morten Andersen Falcons–Saints rivalry
Answer: Wade Phillips