After the Indiana Pacers improved to 7-0 Saturday night against the Brooklyn Nets, the sounds of scattered clapping and off-key singing escaped from the visitor’s locker room. But by the time reporters were allowed in, half-dressed players had settled down and remembered their scripts. Their repeated message: The undefeated streak is nice, but it’s only seven games. Still, some Pacers allowed themselves to consider this historic night in deeper terms than typical postgame clichés. The Indiana Pacers are off to their best start in 46 years as a franchise, and the significance was not lost on the key figures who have led this resurgence. “It means a lot, because we didn’t go out and grab guys. We built this,” said Paul George, whose team will face Western Conference finalist Memphis tonight at Bankers Life Fieldhouse. “That means a lot for us to play well, come together and everybody improve and bring something to the game, and at the same time everyone having each other’s back. That means a lot.” Such timing with George’s words: “we didn’t go out and grab guys” while inside the Barclays Center, home of the reconstructed Nets. Though the Pacers absolutely needed to make trades and spend money to bolster their bench with summer acquisitions such as Luis Scola, C.J. Watson and Chris Copeland, the core group grew up together. Same goes for their coach, who took over midstream during the 2010-11 season. Frank Vogel started in the video room for the Boston Celtics but worked through the ranks and earned so much respect that the Pacers had no problem promoting the then 38-year-old as a first-time head coach.