John Patrick Beilein is an American professional basketball coach who currently serves as the Senior Player Development Advisor for the Detroit Pistons of the National Basketball Association (NBA). Before being hired by Detroit, Beilein served as the head coach of the Cleveland Cavaliers of the National Basketball Association (NBA). Prior to joining the Cavaliers, he coached the Michigan Wolverines (2007–2019), West Virginia Mountaineers (2002–2007), Richmond Spiders (1997–2002), Canisius Golden Griffins (1992–1997) in NCAA Division I as well as the Le Moyne Dolphins (1983–1992), Nazareth College (1982–1983) and Erie Community College (1978–1982). Beilein has won 754 career games at four-year universities and 829 games altogether, including those at the junior college level. Beilein's overall career wins counting the time spent in Cleveland is 843 games.

The Cleveland Cavaliers are an American professional basketball team based in Cleveland. The Cavaliers compete in the National Basketball Association (NBA) as a member of the Central Division of the Eastern Conference. The team began play as an expansion team in 1970, along with the Portland Trail Blazers and Buffalo Braves. Home games were first held at Cleveland Arena from 1970 to 1974, followed by the Richfield Coliseum from 1974 to 1994. Since 1994, the Cavs have played home games at Rocket Mortgage FieldHouse in downtown Cleveland, which is shared with the Cleveland Monsters of the American Hockey League. Dan Gilbert has owned the team since March 2005.