New coach, same Rangers.  Opening night was a dud, far too reminiscent of last winter’s dismal campaign. Access the Rangers beat like never before Join Post Sports+ for exciting subscriber-only features, including real-time texting with Mollie Walker about the inside buzz on the Rangers. tRY IT NOW Mike Sullivan replaced Peter Laviolette on the bench, but it was hard to see much of a difference from last year’s team that failed to reach the postseason for the first time in four years.  The