QUALIFYING TIME: The Heat do not necessarily have an extended history with restricted free agency, but there have been several twists and turns to the process that now, for them, includes Duncan Robinson and Kendrick Nunn. Basically you extend a one-year qualifying offer for a nominal raise to a restricted free agent, and he then re-signs or takes an offer sheet from another team, which you can either match or relinquish rights to the player. The team’s first foray into restricted free agency was in the 1990 offseason, when the Heat signed John “Hot Rod” Williams to an offer sheet that was matched by the Cleveland Cavaliers. A year later, the Heat matched an offer sheet for Sherman Douglas from the Los Angeles Lakers. In 2003, the Heat extended an offer sheet to current assistant coach Malik Allen that Allen accepted, while bypassing offer sheets to Eddie House and Mike James. Later that offseason, the Heat extended an offer sheet to Elton Brand that was matched by the Los Angeles Clippers and then one to Lamar Odom that the Clippers did not match.