Question: Who has coached at more schools, Jerry Tarkanian or Richard Donchian?

John Welch (born February 17, 1963) is an American former basketball player currently working as an assistant coach for the Los Angeles Clippers of the National Basketball Association (NBA).  He played professionally in New Zealand where in 1988, he earned Most Outstanding Guard and All-Star Five honors playing for Waitemata.  Throughout his coaching career, he has worked with or worked under various notable basketball people, including Jerry Tarkanian, Jerry West, Hubie Brown, George Karl and Tim Grgurich. <SEP> Richard Davoud Donchian (born September 1905, Hartford, Connecticut – d. 1993) was an Armenian-American commodities and futures trader, and pioneer in the field of managed futures. <SEP> Jerry Tarkanian (August 8, 1930 – February 11, 2015) was an American basketball coach.  He coached college basketball for 31 seasons over five decades at three schools.  He spent the majority of his career coaching with the UNLV Runnin' Rebels, leading them four times to the Final Four of the NCAA Men's Division I Basketball Tournament, winning the national championship in 1990.  Tarkanian revolutionized the college game at UNLV, utilizing a pressing defense to fuel its fast-paced offense.  Overall, he won over 700 games in his career, and only twice failed to win 20 games in a season.  Tarkanian was inducted into the Naismith Memorial Basketball Hall of Fame in 2013. <SEP> Che' Jones (born April 11, 1971, Columbus, Ohio) is a long time Las Vegas resident who played college basketball at the Ohio State University-Newark, where he ended his career as the second all-time leading scorer in Ohio State-Newark history scoring 1,693 points.  Jones finished his career at Ohio State-Newark second in assists and notched the highest free-throw percentage for a season in the 1999-2000 season with 91.9%.  He is also the all-time leader in three-point field goals made, as well as steals.  The University retired his jersey (#5) on February 26, 2001.  Jones also played professional basketball in Cyprus.  He is currently an assistant coach at Phoenix College in Phoenix, Arizona.  On March 22, 2014 the Phoenix College Bears defeated Essex College for the NJCAA DII National Championship.  Prior to coaching at Phoenix College he coached at Northern Arizona University, where he also earned his Master's degree in Higher Education.  He was also the associate head coach at Glen Oaks Community College in Centreville, Michigan.  Prior to Glen Oaks Community College he was the associate head coach at Albion College, a NCAA division III college in Albion, Michigan.  During the 2007-2008 season he was the head assistant coach at Casper College, a junior college in Casper, Wyoming.  He just recently was the head basketball coach of the Las Vegas Venom of the American Basketball Association (ABA) and an assistant coach to George Tarkanian son of famed coach Jerry Tarkanian, with the Las Vegas Stars of the IBL (International Basketball League).  Che' also coached at Urbana University in Urbana, Ohio and also at Columbus State University where his team was ranked number one in the country for the entire season and ended their season at 29-2 after losing to the eventual National Champion in the NJCAA Regional Championship game.