Lock 1. Dejounte Murray - Point Guard
Given what he offers defensively, offensively, and in energy, it's safe to say Dejounte Murray has the starting point guard spot locked up as long as he wants it in San Antonio. Leading the Spurs in both points (17.0) and assists (4.3) per game in the preseason, he'll likely do close to the same in the regular season while still being among the team's best rebounders.
If the fifth-year point guard is able to shoot the three as well as he did in the preseason (6-of-15 for 40%), we could be looking at the first breakout NBA All-Star on this roster.
Lock 2. Derrick White - Shooting Guard
While Murray certainly made his case as the best player on the Spurs in the preseason, I'm still leaning toward Derrick White being the man in San Antonio. Still, it'll take a healthy season from him for everyone to really know what they have in the 27-year-old.
White impacts the game more than anyone else on both ends of the floor with his defensive instincts and playmaking ability. There's no reason he should be taken out of the starting lineup unless the injury bug rears its ugly head once again.
Lock 3. Keldon Johnson - Small Forward
Although he isn't as well-rounded as White or Murray, Keldon Johnson makes up for his weaknesses with energy, hustle, and heart. Johnson's 75 points in the preseason led all Spurs, as did his 24 free throw attempts.
Coach Popovich loves hustle and effort more than just about anything, and Johnson gives 100% of that every time he's on the court. Barring Devin Vassell becoming Kobe Bryant overnight, it's safe to say Johnson's starting spot is safe this season.
With those locks in place, let's take a look at the fringe starters that could see a demotion for one reason or another before the season is over.