Problem: Background: Joe Jackson Gibbs (born November 25, 1940) is a former American football coach, current NASCAR Championship team owner, and former NHRA team owner. He was the 20th and 26th head coach in the history of the Washington Redskins (1981-1992, 2004-2007). Well known for his long hours and work ethic, Gibbs constructed what Steve Sabol has called, "The most diverse dynasty in NFL history", building championship teams with many players who have had mediocre to average careers while playing for other NFL teams. During his first stint in the National Football League, he coached the Redskins for 12 seasons and led them to eight playoff appearances, four NFC Championship titles, and three Super Bowl titles.
Context: Although Gibbs helped craft a passing-oriented attack during his time in San Diego, his Redskins teams were known to incorporate a smash-mouth, rushing-oriented attack like the counter trey. By building a strong offensive line (known as "The Hogs") Gibbs was able to control the line of scrimmage, allowing workhorse running backs such as John Riggins, George Rogers, and Earnest Byner to power the ground game. Gibbs added a deep passing attack to this which complemented the ground game, utilizing agile receivers such as Art Monk, Gary Clark, and Ricky Sanders. Gibbs' offense was aided during his tenure by aggressive defensive units under the direction of defensive coordinator Richie Petitbon.  Gibbs' system and offensive scheme were robust enough to be successful without a Hall-of-Fame-caliber quarterback at the helm. The Redskins' Super Bowl victories were won featuring Joe Theismann, Doug Williams, and Mark Rypien--capable players who were very successful along with their strong supporting cast.  Gibbs is credited with inventing the single back, double or triple tight end set. He used it to neutralize Hall of Fame linebacker Lawrence Taylor, realizing that to successfully block him with a running back was impossible; an extra tight end and a tackle were required as well. The extra tight end provided additional protection for the quarterback. Gibbs was also credited for creating the Trips formation; stacking three wide receivers to one side. Gibbs incorporated the shifting and motions for which his offenses were known. The formations created mismatches and confusion for the opposing defenses that would then be exploited. He is also one of few coaches that utilized the H-back position prominently in his offense.
Question: Do other teams/coaches use his invented plays?
Answer: 

Problem: Background: Lal Krishna Advani (born 8 November 1927) known as L. K. Advani is an Indian politician who served as the 7th Deputy Prime Minister of India from 2002 to 2004 under Atal Bihari Vajpayee. Advani also served as Minister of Home Affairs in the BJP-led National Democratic Alliance government from 1998 to 2004. He is one of the co-founder and senior leader of Bharatiya Janata Party. He was the Leader of the Opposition in the 10th Lok Sabha and 14th Lok Sabha.
Context: Atal Bihari Vajpayee was appointed the first president of the new party. Historian Ramachandra Guha writes that despite the factional wars within the Janata government, its period in power had seen a rise in support for the RSS, marked by a wave of communal violence in the early 1980s. Despite this, the BJP under Vajpayee initially took a more moderate approach to Hindutva, to gain a wider appeal. This strategy was unsuccessful, as the BJP won only two Lok Sabha seats in the elections of 1984. A few months prior to the election, Indira Gandhi was assassinated, creating a sympathy wave for the Congress that also contributed to the BJP's low tally, as the Congress won a record number of seats. This failure led to a shift in the party's stance; Advani was appointed party president, and the BJP returned to the hardline Hindutva of its predecessor.  Under Advani, the BJP became the political face of the Ram Janmabhoomi campaign. In the early 1980s, the Vishwa Hindu Parishad (VHP) had begun a movement for the construction of a temple dedicated to the Hindu deity Rama at the site of the Babri Masjid in Ayodhya. The agitation was on the basis of the belief that the site was the birthplace of Rama, and that a temple once stood there that had been demolished by the Mughal emperor Babur when he constructed the Babri mosque. The Archaeological Survey of India (ASI) has supported the claim that a Hindu structure once stood at the site, without commenting on a possible demolition. The BJP threw its support behind this campaign, and made it a part of their election manifesto, which provided rich dividends in the general elections of 1989. Despite the Congress winning a plurality in the election, it declined to form a government, and so the National Front government of VP Singh was sworn in. The support of the BJP, with its tally of 86 seats, was crucial to the new government.  Advani embarked on a "Rath Yatra," or chariot journey, to mobilise karsevaks, or volunteers, to converge upon the Babri Masjid to offer prayers. This Rath Yatra, undertaken in an air-conditioned van decorated to look like a chariot, began from Somnath in Gujarat and covered a large portion of Northern India until it was stopped by the Chief Minister of Bihar, Laloo Prasad Yadav, on the grounds that it was leading to communal violence. In the 1991 general elections, the BJP won the second largest number of seats, after the Congress.  In 1992, two years after Advani ended his yatra, despite assurances given by the Kalyan Singh led BJP Government to the Supreme Court, the Babri Masjid was demolished by the communal forces alleged complicity of the Kalyan Singh government. Advani is one of the main accused in the Babri Masjid case.
Question: Why did they decide against forming a government?
Answer:
so the National Front government of VP Singh was sworn in. The support of the BJP, with its tally of 86 seats, was crucial to the new government.