By Andrew Gould LSU introduced new offensive coordinator Mike Denbrock on Thursday. He comes to Baton Rouge with an extensive track record, including a stint with new Tigers head coach Brian Kelly at Notre Dame. The reunion creates an interesting dynamic for LSU’s offense. On the question of who’s running the show, Kelly jokingly offered a simple solution, telling reporters he deserves the credit whenever a play goes well. He then provided a serious response when explaining that Denbrock will call the plays, with Kelly overseeing everything from a big-picture role. When taking the podium, Denb…