Roger Mason Jr.'s role in Miami

Roger Mason Jr. is already four seasons removed from the year when he came out of nowhere to become one of the league's top 3-point shooters for the San Antonio Spurs. That year, 2008-09, Mason started 71 games and knocked down 166 shots from behind the arc, shooting 42.1 percent along the way. Mason hasn't had nearly the same type of impact since then, and now 33 it's safe to say the Miami Heat don't expect that out of him. So what type of role will Mason have with the two-time defending NBA champions?