Except for the last 2 mins with Green and then Kawhi, SAS hasn't been comfortable on offense all game. That's credit largely to GS's defense but that's also some inexcusable misses by SAS. Conversely, Spurs defense is actually solid but those shots rimming out by Mills, Aldridge, Duncan etc allows GS to catch the Spurs on their heels just enough, back peddling, to cause confusion.
Hell, GS's 2nd unit looked more comfortable offensively than their starters, and more than the Spurs' squad in general. SAS gotta find a way to get their offense clicking b/c even in their win on their home court they didn't seem that comfortable as much as just bullying their way with diaw and aldridge through the tough stretches.