Ryan Blaney’s No. 12 Ford was fast enough to win at Bristol, but his pit crew made sure it didn’t happen. He had the speed, had fresher tires on the final restart, was right there in contention, and he gave it everything on that last lap. But he came home second, and when he stepped out of the car, he did not point fingers at the track or the competition. He pointed at his own pit road. “We’ve got to get it better,” Blaney said. “If we’re going…