Winning rosters are never 100% homegrown. You have to find good players on the market who fit your culture and team dynamic. Brian Wright did that with the assortment of talent he's added to the roster over the past two seasons, and those additions paid off in a much-needed victory over the Memphis Grizzlies.
San Antonio hadn't beaten their Southwest Divisional foes in San Antonio in 11 straight games. It's the latest losing streak snapped by the new era Spurs. De'Aaron Fox (26 pts) and Harrison Barnes (23 pts) weren't on the roster for the vast majority of those losses, so they don't mean anything to them.