Donn Charles "Donnie" Nelson (born September 10, 1962 in Des Moines, Iowa) is the General Manager and president of basketball operations for the Dallas Mavericks of National Basketball Association. He is the son of Don Nelson, the former head coach of the Dallas Mavericks and the Golden State Warriors. In a 2007 Sports Illustrated article ranking the NBA's personnel bosses from 1 to 30, Nelson was ranked No. 2. Additionally, in a 2009 Yahoo! Sports article Nelson was ranked the 3rd best General Manager of the decade after producing nine 50-plus win seasons in a row and the first Finals appearance in franchise history in 2006. Nelson assembled the Mavericks team that would later win the 2011 NBA Championship.