Answer by taking a quote from the following article:

Lawrence Harvey Brown (born September 14, 1940) is an American basketball coach, who was most recently head men's basketball coach at Southern Methodist University. He is the only coach in basketball history to win both an NCAA national championship (Kansas Jayhawks, 1988) and an NBA title (Detroit Pistons, 2004). He has a 1,275-965 lifetime professional coaching record in the American Basketball Association (ABA) and the National Basketball Association (NBA) and is the only coach in NBA history to lead eight different teams to the playoffs. He also won an ABA championship as a player with the Oakland Oaks in the 1968-69 season, and an Olympic Gold Medal in 1964.

Brown won his first (and ultimately only) NBA Championship during his first year with the Detroit Pistons in 2004, defeating the Los Angeles Lakers four games to one in the 2004 NBA Finals. By doing so, Brown became the first, and so far only, man to coach teams to both NCAA and NBA titles. Brown is also the only NBA coach to take two different teams (76ers and Pistons) to the NBA Finals against the same opponent (Los Angeles Lakers in 2001 and 2004), lose the first time, and win the second.  Brown was also chosen as the head coach for the USA men's basketball team at the 2004 Summer Olympics which earned a bronze medal, a major disappointment. Brown was heavily criticized for publicly berating the players, for repeatedly criticizing the roster chosen by the player selection committee, and for insisting on a style of play which minimized the United States' advantage in athleticism.  In May 2005, rumors surfaced that Brown would become the Cleveland Cavaliers' team president as soon as the Detroit Pistons finished their postseason. The rumor, which was not dispelled by Brown, became a major distraction as the Pistons lost to the San Antonio Spurs in seven games in the 2005 NBA Finals.  On July 19, 2005, the Pistons, displeased with Brown's public flirtations with other teams, bought out the remaining years of Brown's contract, allowing him to sign with another team. A week later, on July 28, 2005, Brown became the head coach of the New York Knicks, with a 5-year contract reportedly worth between US$50 million and $60 million, making him the highest-paid coach in NBA history.

Was he expected to win a silver/gold?
a major disappointment.