By Jared Keene NEFJ Staff ATTLEBORO - Ever since a season-opening loss to Xaverian, Bishop Feehan hasn’t tasted defeat again. . Entering Friday evening’s massive Catholic Central League showdown with St. Mary’s, the Shamrocks had won their previous six contests, outscoring opponents 209-32 in that span. Allowing just over five points per game during that stretch is simply astounding, but its been the team’s offense that has garnered most of...