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Denver Nuggets Head Coach George Karl accepts the 2012-13 NBA Coach of the Year Award at the Pepsi Center on Wednesday, May 8, 2013. (Photo By Lindsay Pierce/The Denver Post) ( SP09KARL__1TR3727 )

Denver Nuggets Head Coach George Karl accepts the 2012-13 NBA Coach of the Year Award at the Pepsi Center on Wednesday, May 8, 2013. (Photo By Lindsay Pierce/The Denver Post) ( SP09KARL__1TR3672 )

Denver Nuggets Head Coach George Karl accepts the 2012-13 NBA Coach of the Year Award at the Pepsi Center on Wednesday, May 8, 2013. (Photo By Lindsay Pierce/The Denver Post) ( SP09KARL__1TR3598 )

Denver Nuggets Head Coach George Karl accepts the 2012-13 NBA Coach of the Year Award at the Pepsi Center on Wednesday, May 8, 2013. (Photo By Lindsay Pierce/The Denver Post) ( SP09KARL__1TR3668 )

Denver Nuggets Head Coach George Karl becomes emotional after accepting the 2012-13 NBA Coach of the Year Award at the Pepsi Center on Wednesday, May 8, 2013. "Probably my best friend in coaching I lost this year, in Rick Majerus. There were a lot of days I fought, because I miss him a lot," said Karl. (Photo By Lindsay Pierce/The Denver Post) ( SP09KARL__1TR3652 )

Denver Nuggets Head Coach George Karl accepts the 2012-13 NBA Coach of the Year Award at the Pepsi Center on Wednesday, May 8, 2013. (Photo By Lindsay Pierce/The Denver Post) ( SP09KARL__1TR3704 )

Denver Nuggets head coach George Karl directs his team against the Golden State Warriors during Game 6 of their NBA Western Conference quarter-final playoff basketball game in Oakland, California May 2, 2013. REUTERS/Robert Galbraith ( NBA/ )

Denver coach George Karl talked with his daughter Kaci Grace before the game. The Denver Nuggets hosted the Houston Rockets at the Pepsi Center Saturday night, April 6, 2013. Photo By Karl Gehring/The Denver Post) ( SP06NUGGETS_KG24031 )

Head coach George Karl leads the Denver Nuggets against the Golden State Warriors during Game Five of the Western Conference Quarterfinals of the 2013 NBA Playoffs at the Pepsi Center on April 30, 2013 in Denver, Colorado. (Photo by Doug Pensinger/Getty Images) ( 167820479 )

Head coach George Karl of the Denver Nuggets looks on as his team faces the Golden State Warriors during Game Two of the Western Conference Quarterfinals of the 2013 NBA Playoffs at the Pepsi Center on April 23, 2013 in Denver, Colorado. The Warriors defeated the Nuggets 131-117. (Photo by Doug Pensinger/Getty Images) ( 167300387 )

Denver Nuggets head coach George Karl, center, reacts in the closing seconds of a 92-88 loss to the Golden State Warriors during Game 6 in a first-round NBA basketball playoff series in Oakland, Calif., Thursday, May 2, 2013. (AP Photo/Marcio Jose Sanchez) ( Nuggets Warriors Basketball )

Denver Nuggets Andre Miller (24) and head coach George Karl poses for team photographer Garrett Ellwood during Media Day at Pepsi Monday, October 1, 2012 at Pepsi Center. The team unveiled their new alternate uniform. John Leyba, The Denver Post ( NUGGETS_MEDIADAY_1JL7218 )

Denver Nuggets coach George Karl addresses the media during Media Day at Pepsi Monday, October 1, 2012 at Pepsi Center. The team also unveiled their new alternate uniform. John Leyba, The Denver Post ( NUGGETS_MEDIADAY_1JL4211 )

Denver Nuggets head coach George Karl talks with players after practice today October 4th, 2012. The Denver Nuggets assistant coach John Welch, is becoming known for his crazy hard workouts with the team. GM Masai Ujiri has been gushing about him this off season. Welch, who worked for seven seasons at Fresno State under Jerry Tarkanian (his coach at UNLV in the 1980s), is known as the best "work-out" assistant coach in the league yet fans don't know him. In his fourth season with the Nuggets, he's a wicked-smart assistant, key to the Nuggets' success. He is photographed during the team's practice session today October 4th, 2012. Helen H. Richardson, The Denver Post ( cd05FEATUREfilenamebase} DSC_3352 )

Denver Nuggets head coach George Karl watches the action from the sidelines in the third quarter. The Denver Nuggets took on the Golden State Warriors in Game 2 of the Western Conference First Round Series at the Pepsi Center in Denver, Colo. on April 23, 2013. (Photo by AAron Ontiveroz/The Denver Post) ( NuggetsWarriors_ADO2236 )

Denver Nuggets head coach George Karl reacts to a call during the second half of the NBA basketball game against the Utah Jazz in Salt Lake City, Utah, November 26, 2012. REUTERS/Jim Urquhart ( NBA/ )

As time dwindles in the fourth quarter, Denver Nuggets head coach Geoge Karl, second from left, reacts to his team's struggles along with assistant coach Melvin Hunt, left, assistant coach John Welch and head trainer Jim Gillen, right, as the Golden State Warriors claim a 131-117 victory over the Nuggets in Game 2 of the teams' NBA first-round playoff series in Denver on Tuesday, April 23, 2013. (AP Photo/David Zalubowski) ( Warriors Nuggets Basketball )

Head coach George Karl of the Denver Nuggets talks with the media during practice April 22, 2013 at Pepsi Center. The Denver Nuggets prepare for game two of the first round of the NBA playoffs against the Golden State Warriors. (Photo By John Leyba/The Denver Post) ( PLAYOFF_PRACTICE_2JL2960 )

Nuggets forward Kenneth Faried jokes around after practice Friday with coach George Karl. Faried turned into a reporter, asking the coach a few questions with the regular media. Benjamin Hochman, The Denver Post ( SP05BKNNUGSDPO )

Denver Nuggets head coach George Karl reacts against the Golden State Warriors during Game 6 of their NBA Western Conference quarter-final playoff basketball game in Oakland, California May 2, 2013. The Warriors won the best-of-seven series 4-2. REUTERS/Robert Galbraith ( NBA/ )

Denver Nuggets head coach George Karl gets heated over a foul called on Denver Nuggets small forward Kenneth Faried (35) during the second half of the Nugget's 92-78 win at the Pepsi Center on Tuesday, January 1, 2013. AAron Ontiveroz, The Denver Post ( SPBKNNUGS_ADO2360 )