From 1965 to 1968 Adelman played for the Loyola Marymount Lions Loyola Marymount University in Los Angeles. For the Lions, he scored 18.8 points on average. So it is in this category in the all-time best list of university rank six.
After college career Adelman played a total of seven seasons in the NBA long. In the NBA Draft in 1968 it chose the San Diego Rockets (now the Houston Rockets ) at 79th position. After two seasons with the Rockets Adelman came in 1970 as part of an expansion Drafts to the newly formed Portland Trail Blazers, for which he served for three years running. The first year with the Trail Blazers became the most successful of his career: On average, he scored 12.6 points, 4.7 assists and 3.5 rebounds. In the season 73/74 Adelman played for the Chicago Bulls. The following season began Adelman in Chicago, moved to twelve matches played in New Orleans at the New Orleans Jazz (now the Utah Jazz ) and after 28 games for New Orleans on to the Kansas City / Omaha Kings (now the Sacramento Kings ), for he was still only 28 games active. At the age of 27, he ended his active career.
Starting in 1977, Adelman worked as a coach at Chemeketa Community College in Salem, Oregon's capital, until he was obliged in 1983 by the Portland Trail Blazers as assistant coach. As head coach Jack Ramsay dismissed in 1986 and Mike Shuler was set as successor, Adelman retained his post as assistant coach. Three years later, in the season 1988/89, Shuler was sacked after a poor start to the season, and Adelman used as interim coach. Despite a negative season record of 39:43 he led the team to the playoffs and got a full contract after the season as head coach. The next three seasons were very successful for Adelman and the Trail Blazers: 1990 and 1992, the collection succeeded to the NBA Finals ( losing to the Detroit Pistons, respectively, the Chicago Bulls) and 1991, the finals of the Western Conference ( losing to the Los Angeles Lakers ). After two more seasons, he was released in 1994.
For two years, from 1995 to 1997, Adelman coached the Golden State Warriors, but could not repeat the success of Portland there: In two seasons, the team failed to reach the playoffs.
From 1998 to 2006 he was engaged at the Sacramento Kings. In all eight seasons, the team qualified for the playoffs, however, different from four times already in the first round and three times in the Conference semi-finals. Greatest success was the way into the Western Conference Finals in 2002, where Sacramento 3:4 with the Los Angeles Lakers defeated.
The Houston Rockets committed Adelman on 22 May 2007 as the successor to Jeff Van Gundy. Late January to mid-March 2008 succeeded the Rockets with 22 wins in a row, the third-longest winning streak in NBA history, surpassed only by the Los Angeles Lakers in the season 71/72, which brought it to 33 wins in a row and the Miami Heat 27 wins. For the 2011/2012 season Adelman received the part of the Rockets a new contract. Previously, the Rockets had missed two consecutive years making the play offs.
Beginning of September 2011 gave the Minnesota Timberwolves the obligation needle Mans as new head coach known.