Question: Q1: Who led the team that claimed their first national championship at the 2000 NCAA Division I-A football season?

Context paragraphs:
2004 USC Trojans football team: The 2004 USC Trojans football team represented the University of Southern California in the 2004 NCAA Division I-A football season.  Although now vacated for breaking NCAA rules, the team won the 2004 BCS National Championship by winning the 2005 Orange Bowl, that year's BCS National Championship Game.  The team also won the AP title for the second year in a row.  It was the Trojans' first undisputed national championship since 1972, and the second time a team had gone wire-to-wire, with the Trojans holding the number 1 spot in the polls all season.  The team was coached by Pete Carroll in his fourth year with the Trojans, and played their home games in the Los Angeles Memorial Coliseum.

2000 NCAA Division I-A football rankings: Two human polls and one formulaic ranking make up the 2000 NCAA Division I-A football rankings.  Unlike most sports, college football's governing body, the National Collegiate Athletic Association (NCAA), does not bestow a National Championship title for Division I-A football.  That title is primarily bestowed by different polling agencies.  There are several polls that currently exist.  The main weekly polls are the AP Poll and Coaches Poll.  About halfway through the season the Bowl Championship Series (BCS) Standings are released.

2000 Florida Gators football team: The 2000 Florida Gators football team represented the University of Florida in the sport of American football during the 2000 NCAA Division I-A football season.  The Gators competed in Division I-A of the National Collegiate Athletic Association (NCAA) and the Eastern Division of the Southeastern Conference (SEC), and played their home games at Ben Hill Griffin Stadium on the university's Gainesville, Florida campus.  They were coached by Steve Spurrier, who led the Gators to their sixth SEC championship, a Sugar Bowl berth, and an overall win-loss record of 10–3 (.769).  The season was the team's eleventh of twelve under Spurrier.

2001 Orange Bowl: The 2001 FedEx Orange Bowl game was a post-season college football bowl game and BCS National Championship match between the University of Oklahoma Sooners and the Florida State Seminoles on January 3, 2001, at Pro Player Stadium in Miami Gardens, Florida.  Oklahoma defeated FSU 13–2 in a defensive battle to claim the National Championship as head coach Bob Stoops completed just his second season as the coach of the Sooners.  The game was part of the 2000–2001 Bowl Championship Series (BCS) of the 2000 NCAA Division I-A football season and represented the concluding game of the season for both teams.  The Orange Bowl was first played in 1935, and the 2001 game represented the 67th edition.  The contest was televised in the United States on ABC.

2005 USC Trojans football team: The 2005 USC Trojans football team represented the University of Southern California in the 2005 NCAA Division I-A football season, winning the Pacific-10 Conference (Pac-10), and playing for the NCAA Division I-A national championship.  The team was coached by Pete Carroll, led on offense by quarterback and 2004 Heisman Trophy winner Matt Leinart, and played their home games in the Los Angeles Coliseum.

1978 Lamar Cardinals football team: The 1978 Lamar Cardinals football team represented Lamar University in the 1978 NCAA Division I-A football season as a member of the Southland Conference.  NCAA Division I split into Division I-A, the current Football Bowl Subdivision (FBS), and Division I-AA, the current Football Championship Subdivision (FCS), for football in 1978.  Lamar and the Southland Conference opted to compete at the Division I-A level.  The Cardinals played their home games at Cardinal Stadium now named Provost Umphrey Stadium in Beaumont, Texas.  Lamar finished the 1978 season with a 2–8–1 overall record and a 0–5 conference record.  The 1978 season marked Bob Frederick's final season as Lamar's head football coach.

1994 NCAA Division I-A football season: The 1994 NCAA Division I-A football season was the main college football season sanctioned by the NCAA.  The season began in August 1994 and ended on January 2, 1995.  Nebraska, who finished the season undefeated, ended the year ranked #1 in both the Associated Press and Coaches polls.  This was the first national championship of coach Tom Osborne's career at Nebraska, despite coming close in two prior attempts; in 1983, his team lost to Miami after Osborne, with his team trailing 31-30 late in the game, elected to try for the lead instead of the tie and failed.  In the previous season, Osborne's team lost to eventual national champion Florida State on a missed field goal as time expired.

2000 Temple Owls football team: The 2000 Temple Owls football team represented Temple University in the college 2000 NCAA Division I-A football season.  The Owls competed in the NCAA Division I-A as a member of the Big East Conference, and the team was coached by Bobby Wallace.

2000 Oklahoma Sooners football team: The 2000 Oklahoma Sooners football team represented the University of Oklahoma in the 2000 NCAA Division I-A football season, the 106th season of Sooner football.  The team was led by Bob Stoops in his second season as head coach.  They played their home games at Oklahoma Memorial Stadium in Norman.  During this season, they competed in the Big 12 Conference.

2000 NCAA Division I-A football season: The 2000 NCAA Division I-A football season ended with the Oklahoma Sooners claiming their first national championship and their first conference championship since the departure of head coach Barry Switzer.

Supporting paragraphs: 2000 NCAA Division I-A football season 2000 Oklahoma Sooners football team
Answer: Bob Stoops