Brett Brown is the preferred candidate for the 76ers coaching job, according to a league source.
If the job doesn't go to Brown, the search for Doug Collins' replacement will remain competitive, the source said.
Portland Trail Blazers assistant David Vanterpool; Sixers assistant Michael Curry, a holdover from Collins' staff; and Boston Celtics assistant Jay Larranaga are believed to be the other serious contenders.
The source confirmed that Chicago Bulls assistant coach Adrian Griffin also interviewed for the job.
The Sixers will not comment on the search and are not giving clues to when it will end.
The source said majority owner Josh Harris did not attend any of the initial interviews. But he is expected to interview the finalists before the Sixers make a decision.