I see White's potential mentioned plenty. I think he could potentially be a high end 6th man (reminds me of Delon Wright, with a pullup 3), but not a star.
They only had a legit chance from '12-'14 and "the system" was mostly the genius of that particular group of players.
They don't even have a path to contention again until they find a superstar, which is extremely difficult. A lot of Spurs fans are blind to how rare they are because they've been lucky enough to have one for the past 29 seasons (not really from '09-'16, but the biggest 3 kind of collectively added up to one).
I count 9 current ones (James, Durant, Davis, Curry, Harden, Leonard, Antetokounmpo, Westbrook, Paul) and only the first 3 were projected to be.
They got lucky with Leonard. Maybe they will with Walker, too (he's more athletic, with better ball skills than Leonard was when drafted), but it's always highly unlikely with any non generational type prospect.
No, the Raptors received criticism for their supposed handling of it with DeRozan. They received virtual universal acclaim and praise for the actual trade though, while the Spurs were criticized and mocked for failing to extract either Anunoby or Siakam and for constructing a roster even more archaic than recent iterations.