I get that Pop is a phenomenal coach, and Duncan has been so efficient year-in year-out, but San Antonio's consistency is mind blowing. For comparison, the next longest such streak is Chicago with 5 years and then Clippers/Grizzlies with 3 years.
With how volatile the NBA is and how much injuries can turn a season around, that streak is likely to last a very very long time. San Antonio hasn't had to deal with as much roster turnover at key positions, but isn't that attributable to their organization?