Red Bank Regional High School's football season opened Saturday with high expectations. Seniors who, as freshmen, went undefeated, led the team onto the field, and the crowd was treated to a beautiful rendition of the "Star Spangled Banner" by senior Breyonna Clark. But the game ended on a realistic, if somber, note. Red Bank Catholic won 47-0 and, as RBR Coach Nick Giglio observed afterward, "showed why they are the best team on the Shore." The Bucs played without senior standout Dillon Stambaugh, who likely would have helped contain the score. But at the end of the day, RBR was …