For ten years, the Spurs had always relied on sheer strength to overpower opponents. When that was not enough, they increased Duncan's playtime, pushing him to the limit, and if that still didn't suffice, they admitted defeat.
With Ginobili on board, the Spurs introduced some variations, such as in the 2005 Finals, starting from Game 5 when Ginobili began showing his magic. First, in Game 5, he soared with a game-high 9 assists and, with 5.8 seconds left, assisted Horry's three-pointer that almost secured the game; then in Game 6, he scored madly, surpassing Duncan as the team's top scorer; and finally, in Game 7, he scored 11 points on 4-for-3 shooting in the last quarter, single-handedly defeating the Pistons in a game that had been tied until the first three quarters.
The saying about relying on Ginobili in dire times originated from that championship series, and that's why so many people felt it was unfair that Ginobili didn't win the Finals MVP in 2005.