By Joseph Currier, Wrestling Observer It’s up to Paul “Triple H” Levesque to make SummerSlam a PPV that wraps up WWE’s existing storylines while also showing that a new direction is coming. WWE’s biggest event of the summer will take place on Saturday, serving as a bridge between the company’s past and an exciting new era that’s just beginning. SummerSlam will be the first WWE pay-per-view since Vince McMahon retired from the company amid a sexual misconduct scandal. While McMahon may be gone, the direction for SummerSlam was put in place while he was still in charge. It’s up to new head of cr…