Miami ? Heat general manager Randy Pfund, who helped Miami win the 2006 NBA championship as the highlight of his 13 years with the franchise, resigned Monday.

Pfund said Monday night that it was “the perfect time to pursue other opportunities within the NBA,” without offering specifics.

Team president Pat Riley – who already had final say on virtually all personnel moves – will assume at least some of Pfund’s duties, which included overseeing draft preparation, scouting, salary-cap management and player-personnel decisions.