Answer the question at the end by quoting:

John F. Maulbetsch (June 20, 1890 - September 14, 1950) was an All-American football halfback at Adrian College in 1911 and for the University of Michigan Wolverines from 1914 to 1916. He is also a member of the College Football Hall of Fame. After playing with an independent football team in Ann Arbor and at Adrian College, Maulbetsch became one of the most famous American football players in 1914 while playing for the University of Michigan. Maulbetsch became known as the "Human Bullet" because of his unusual low, line-plunging style of play, and was also known as the "Featherweight Fullback" because of his light weight and small size.
In January 1921, Maulbetsch was hired as the head coach at Oklahoma Agricultural and Mechanical College (now Oklahoma State) in Stillwater, Oklahoma. He served as the coach at Oklahoma A&M from 1921 to 1928, where his teams posted a 28-37-6 (.437) record. In 1924, his team went 6-1-2 and shut out Oklahoma (6-0), Arkansas (20-0) and Kansas (3-0). Maulbetsch's Aggies also shut out Phillips that year, 13-0. After the season, attempts were made to lure him to Washington University in St. Louis, Missouri, but Maulbetsch said he was satisfied with his position in Stillwater. Maulbetsch arranged a game in Ann Arbor against his alma mater to start the 1926 season. Michigan beat the Aggies, 42-3. Despite an overall record of 3-4-1, Oklahoma A&M won its first conference football championship by going 3-0-1 in games against Missouri Valley Intercollegiate Athletic Association opponents. Maulbetsch also drew attention in 1926 for his disciplinary methods. When the team lost two games due to fumbles, he ordered eight of his backfield players to carry footballs with them to classes throughout the week and instructed other team members to try knocking the balls from under their arms. The penalty for losing a ball was "a hard run around the stadium." He also ordered one of his ends to wear boxing gloves after he poked an opposing player in the eye. The Aggies won only one game against seven defeats in 1928. In late November, the day after a 46-0 loss to Oklahoma, newspapers reported that "reliable sources" had said Maulbetsch intended to resign. Maulbetsch immediately denied the rumor, saying: "I have not resigned. I am aware that a faction here is trying to get me out, but I do not intend to throw up the sponge." In December, pressure to fire Maulbetsch grew, and one Oklahoma newspaper observed: "Coach Maulbetsch of the A. & M. football team is the object of attacks from many sides because of the rather poor showing made by his team during the past season. They are looking for a goat and just now Johnnie is cast in that role. Regardless of his past record, those who demand victory at any price and by any means whatsoever, are insisting that he be fired forthwith and a man be placed in the position who, by fair means or foul, will gather in a team that will win victories and never lose a game." Ultimately, Maulbetsch resigned at the end of May 1929 as Oklahoma A&M's coach in football, baseball, and basketball. It was announced that he would spend the remaining year of his contract on a leave of absence at half pay.

What made him decide to coach?

Answer the question at the end by quoting:

Leonardo di ser Piero da Vinci (Italian: [leo'nardo di ,ser 'pje:ro da (v)'vintSi] ( listen); 15 April 1452 - 2 May 1519), more commonly Leonardo da Vinci or simply Leonardo, was an Italian Renaissance polymath whose areas of interest included invention, painting, sculpting, architecture, science, music, mathematics, engineering, literature, anatomy, geology, astronomy, botany, writing, history, and cartography. He has been variously called the father of palaeontology, ichnology, and architecture, and is widely considered one of the greatest painters of all time. Sometimes credited with the inventions of the parachute, helicopter and tank, he epitomised the Renaissance humanist ideal.
In 1466, at the age of fourteen, Leonardo was apprenticed to the artist Andrea di Cione, known as Verrocchio, whose bottega (workshop) was "one of the finest in Florence". He apprenticed as a garzone (studio boy) to Andrea del Verrocchio, the leading Florentine painter and sculptor of his day (and would do so for 7 years). Other famous painters apprenticed or associated with the workshop include Domenico Ghirlandaio, Perugino, Botticelli, and Lorenzo di Credi. Leonardo would have been exposed to both theoretical training and a vast range of technical skills, including drafting, chemistry, metallurgy, metal working, plaster casting, leather working, mechanics and carpentry as well as the artistic skills of drawing, painting, sculpting and modelling. Much of the painted production of Verrocchio's workshop was done by his employees. According to Vasari, Leonardo collaborated with Verrocchio on his The Baptism of Christ, painting the young angel holding Jesus' robe in a manner that was so far superior to his master's that Verrocchio put down his brush and never painted again, although this is believed to be apocryphal. Close examination reveals areas that have been painted or touched-up over the tempera using the new technique of oil paint; the landscape, the rocks seen through the brown mountain stream and much of the figure of Jesus bearing witness to the hand of Leonardo. Leonardo may have been the model for two works by Verrocchio: the bronze statue of David in the Bargello and the Archangel Raphael in Tobias and the Angel. By 1472, at the age of twenty, Leonardo qualified as a master in the Guild of Saint Luke, the guild of artists and doctors of medicine, but even after his father set him up in his own workshop, his attachment to Verrocchio was such that he continued to collaborate with him. Leonardo's earliest known dated work is a drawing in pen and ink of the Arno valley, drawn on 5 August 1473.

What did he like
young angel holding Jesus' robe in a manner that was so far superior to his master's