If it was a question of whether or not the transformed Nets’ defense could hold up against a quality opponent, the answer is a resounding yes. That much became clear, quickly, in Brooklyn’s 110-95 victory over the Los Angeles Clippers on Saturday, the Nets’ fourth win in their last five games under newly promoted head coach Jacque Vaughn. The Nets, who owned the NBA’s worst defense before Vaughn stepped in, have found their identity on that end of the floor. They held the Clippers under the 100-point mark and continue to rank league-best in opponent points per game. Even Nets owner Joe Tsai tw…