The San Antonio Spurs probably won a game they shouldn't have in Game 1 against the Los Angeles Lakers.
They dominated the Lakers while only shooting 37% (32-85) while the Lakers shot 41% (30-73). The biggest difference for the Spurs was the 3-point shooting with the silver and black outshooting the Lakers 31% (7-22) to 20% (3-15) and the bench production with the Spurs bench pouring in 40 points to the Lakers' 10.
The long range shots helped the team, but that's an aspect of the game they can't rely on for the entire series, let alone for the entire playoffs. While the Spurs defeated the Lakers in Game 1, there's four (two offensive, two defensive) adjustments the Spurs could make to possibly defeat the Lakers easily in the next game at the AT&T Center.
#1) Make the Lakers one dimensional
Magic Johnson and Kobe Bryant had the same advice for Mike D'Antoni in "post, post, post!". Pau Gasol and Dwight Howard shot a combined 53% (15-28) from the field this game with Gasol playing 43 minutes and Howard playing 41 minutes. Although this is probably the best strategy for the Lakers, it's also the most demanding with those two in the game resting less than 10 minutes for four quarters.